---
_id: '65699'
author:
- first_name: André
  full_name: Uhde, André
  id: '36049'
  last_name: Uhde
- first_name: Stephan
  full_name: Paul, Stephan
  last_name: Paul
- first_name: Andreas
  full_name: Horsch, Andreas
  last_name: Horsch
- first_name: Daniel
  full_name: Kaltofen, Daniel
  last_name: Kaltofen
- first_name: Gregor
  full_name: Weiß, Gregor
  last_name: Weiß
citation:
  ama: Uhde A, Paul S, Horsch A, Kaltofen D, Weiß G. <i>Unternehmerische Finanzierungspolitik
    - Eine wertorientierte Einführung</i>. 2. Auflage.; 2026.
  apa: Uhde, A., Paul, S., Horsch, A., Kaltofen, D., &#38; Weiß, G. (2026). <i>Unternehmerische
    Finanzierungspolitik - Eine wertorientierte Einführung</i> (2. Auflage).
  bibtex: '@book{Uhde_Paul_Horsch_Kaltofen_Weiß_2026, edition={2. Auflage}, title={Unternehmerische
    Finanzierungspolitik - Eine wertorientierte Einführung}, author={Uhde, André and
    Paul, Stephan and Horsch, Andreas and Kaltofen, Daniel and Weiß, Gregor}, year={2026}
    }'
  chicago: Uhde, André, Stephan Paul, Andreas Horsch, Daniel Kaltofen, and Gregor
    Weiß. <i>Unternehmerische Finanzierungspolitik - Eine wertorientierte Einführung</i>.
    2. Auflage., 2026.
  ieee: A. Uhde, S. Paul, A. Horsch, D. Kaltofen, and G. Weiß, <i>Unternehmerische
    Finanzierungspolitik - Eine wertorientierte Einführung</i>, 2. Auflage. 2026.
  mla: Uhde, André, et al. <i>Unternehmerische Finanzierungspolitik - Eine wertorientierte
    Einführung</i>. 2. Auflage, 2026.
  short: A. Uhde, S. Paul, A. Horsch, D. Kaltofen, G. Weiß, Unternehmerische Finanzierungspolitik
    - Eine wertorientierte Einführung, 2. Auflage, 2026.
date_created: 2026-05-27T10:56:28Z
date_updated: 2026-05-27T10:57:39Z
department:
- _id: '19'
edition: 2. Auflage
language:
- iso: ger
publication_identifier:
  isbn:
  - 978-3-7910-6577-9
publication_status: published
status: public
title: Unternehmerische Finanzierungspolitik - Eine wertorientierte Einführung
type: book
user_id: '36049'
year: '2026'
...
---
_id: '63810'
author:
- first_name: Christoph
  full_name: Bürgel, Christoph
  id: '58448'
  last_name: Bürgel
- first_name: Dirk
  full_name: Siepmann, Dirk
  last_name: Siepmann
citation:
  ama: 'Bürgel C, Siepmann D. A Comprehensive Grammar of Spoken and Written French
    as the First Fully Corpus-informed Grammar of French. In: Piske T, Herbst T, eds.
    <i>Pedagogical Linguistics, Selected Papers from Constructionist Approaches to
    Language Pedagogy 4, 7:1, 17–3.</i> Piske, Thorsten &#38; Herbst, ; 2026:7:1,
    17–3.'
  apa: Bürgel, C., &#38; Siepmann, D. (2026). A Comprehensive Grammar of Spoken and
    Written French as the First Fully Corpus-informed Grammar of French. In T. Piske
    &#38; T. Herbst (Eds.), <i>Pedagogical Linguistics, Selected Papers from Constructionist
    Approaches to Language Pedagogy 4, 7:1, 17–3.</i> (p. 7:1, 17–3). Piske, Thorsten
    &#38; Herbst, .
  bibtex: '@inbook{Bürgel_Siepmann_2026, title={A Comprehensive Grammar of Spoken
    and Written French as the First Fully Corpus-informed Grammar of French}, booktitle={Pedagogical
    Linguistics, Selected Papers from Constructionist Approaches to Language Pedagogy
    4, 7:1, 17–3.}, publisher={Piske, Thorsten &#38; Herbst, }, author={Bürgel, Christoph
    and Siepmann, Dirk}, editor={Piske, Thorsten  and Herbst, Thomas }, year={2026},
    pages={7:1, 17–3} }'
  chicago: Bürgel, Christoph, and Dirk Siepmann. “A Comprehensive Grammar of Spoken
    and Written French as the First Fully Corpus-Informed Grammar of French.” In <i>Pedagogical
    Linguistics, Selected Papers from Constructionist Approaches to Language Pedagogy
    4, 7:1, 17–3.</i>, edited by Thorsten  Piske and Thomas  Herbst, 7:1, 17–3. Piske,
    Thorsten &#38; Herbst, , 2026.
  ieee: C. Bürgel and D. Siepmann, “A Comprehensive Grammar of Spoken and Written
    French as the First Fully Corpus-informed Grammar of French,” in <i>Pedagogical
    Linguistics, Selected Papers from Constructionist Approaches to Language Pedagogy
    4, 7:1, 17–3.</i>, T. Piske and T. Herbst, Eds. Piske, Thorsten &#38; Herbst,
    , 2026, p. 7:1, 17–3.
  mla: Bürgel, Christoph, and Dirk Siepmann. “A Comprehensive Grammar of Spoken and
    Written French as the First Fully Corpus-Informed Grammar of French.” <i>Pedagogical
    Linguistics, Selected Papers from Constructionist Approaches to Language Pedagogy
    4, 7:1, 17–3.</i>, edited by Thorsten  Piske and Thomas  Herbst, Piske, Thorsten
    &#38; Herbst, , 2026, p. 7:1, 17–3.
  short: 'C. Bürgel, D. Siepmann, in: T. Piske, T. Herbst (Eds.), Pedagogical Linguistics,
    Selected Papers from Constructionist Approaches to Language Pedagogy 4, 7:1, 17–3.,
    Piske, Thorsten &#38; Herbst, , 2026, p. 7:1, 17–3.'
date_created: 2026-01-29T12:40:28Z
date_updated: 2026-05-27T12:05:43Z
editor:
- first_name: 'Thorsten '
  full_name: 'Piske, Thorsten '
  last_name: Piske
- first_name: 'Thomas '
  full_name: 'Herbst, Thomas '
  last_name: Herbst
language:
- iso: eng
page: 7:1, 17–3
publication: Pedagogical Linguistics, Selected Papers from Constructionist Approaches
  to Language Pedagogy 4, 7:1, 17–3.
publisher: 'Piske, Thorsten & Herbst, '
status: public
title: A Comprehensive Grammar of Spoken and Written French as the First Fully Corpus-informed
  Grammar of French
type: book_chapter
user_id: '43976'
year: '2026'
...
---
_id: '65692'
author:
- first_name: Marc
  full_name: Kukuk, Marc
  id: '290'
  last_name: Kukuk
- first_name: Heiko
  full_name: Meier, Heiko
  id: '21765'
  last_name: Meier
citation:
  ama: 'Kukuk M, Meier H. Kinderspielplätze aus der Perspektive von Erwachsenen -
    Nutzungsverhalten, Attraktivitätskritieren und Implikationen für Beteiligungsverfahren.
    In: Meier H, Kukuk M, Sennefelder L, eds. <i>Planen. Beteiligen. Bauen. Bewegen.
    16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad
    Driburg &#38; Paderborn</i>. Vol Band 305. Schriften der Deutschen Vereinigung
    für Sportwissenschaft. Feldhaus; 2026:51-61.'
  apa: 'Kukuk, M., &#38; Meier, H. (2026). Kinderspielplätze aus der Perspektive von
    Erwachsenen - Nutzungsverhalten, Attraktivitätskritieren und Implikationen für
    Beteiligungsverfahren. In H. Meier, M. Kukuk, &#38; L. Sennefelder (Eds.), <i>Planen.
    Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“
    vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn: Vol. Band 305</i> (pp. 51–61).
    Feldhaus.'
  bibtex: '@inbook{Kukuk_Meier_2026, series={Schriften der Deutschen Vereinigung für
    Sportwissenschaft}, title={Kinderspielplätze aus der Perspektive von Erwachsenen
    - Nutzungsverhalten, Attraktivitätskritieren und Implikationen für Beteiligungsverfahren},
    volume={Band 305}, booktitle={Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung
    der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn},
    publisher={Feldhaus}, author={Kukuk, Marc and Meier, Heiko}, editor={Meier, Heiko
    and Kukuk, Marc and Sennefelder, Lisa}, year={2026}, pages={51–61}, collection={Schriften
    der Deutschen Vereinigung für Sportwissenschaft} }'
  chicago: Kukuk, Marc, and Heiko Meier. “Kinderspielplätze aus der Perspektive von
    Erwachsenen - Nutzungsverhalten, Attraktivitätskritieren und Implikationen für
    Beteiligungsverfahren.” In <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung
    der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>,
    edited by Heiko Meier, Marc Kukuk, and Lisa Sennefelder, Band 305:51–61. Schriften
    der Deutschen Vereinigung für Sportwissenschaft. Feldhaus, 2026.
  ieee: M. Kukuk and H. Meier, “Kinderspielplätze aus der Perspektive von Erwachsenen
    - Nutzungsverhalten, Attraktivitätskritieren und Implikationen für Beteiligungsverfahren,”
    in <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission
    „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>, vol. Band
    305, H. Meier, M. Kukuk, and L. Sennefelder, Eds. Feldhaus, 2026, pp. 51–61.
  mla: Kukuk, Marc, and Heiko Meier. “Kinderspielplätze aus der Perspektive von Erwachsenen
    - Nutzungsverhalten, Attraktivitätskritieren und Implikationen für Beteiligungsverfahren.”
    <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport
    und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>, edited by Heiko
    Meier et al., vol. Band 305, Feldhaus, 2026, pp. 51–61.
  short: 'M. Kukuk, H. Meier, in: H. Meier, M. Kukuk, L. Sennefelder (Eds.), Planen.
    Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“
    vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn, Feldhaus, 2026, pp. 51–61.'
date_created: 2026-05-26T14:07:02Z
date_updated: 2026-05-27T14:33:22Z
department:
- _id: '175'
editor:
- first_name: Heiko
  full_name: Meier, Heiko
  last_name: Meier
- first_name: Marc
  full_name: Kukuk, Marc
  last_name: Kukuk
- first_name: Lisa
  full_name: Sennefelder, Lisa
  last_name: Sennefelder
language:
- iso: ger
page: 51-61
publication: Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission
  „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg & Paderborn
publication_identifier:
  isbn:
  - '9783880207301'
publication_status: published
publisher: Feldhaus
series_title: Schriften der Deutschen Vereinigung für Sportwissenschaft
status: public
title: Kinderspielplätze aus der Perspektive von Erwachsenen - Nutzungsverhalten,
  Attraktivitätskritieren und Implikationen für Beteiligungsverfahren
type: book_chapter
user_id: '290'
volume: Band 305
year: '2026'
...
---
_id: '65701'
author:
- first_name: Heiko
  full_name: Meier, Heiko
  id: '21765'
  last_name: Meier
- first_name: Marc
  full_name: Kukuk, Marc
  id: '290'
  last_name: Kukuk
- first_name: Lisa
  full_name: Sennefelder, Lisa
  last_name: Sennefelder
citation:
  ama: 'Meier H, Kukuk M, Sennefelder L. Planen. Bauen. Beteiligen. Bewegen: Einführende
    Bemerkungen. In: Meier H, Kukuk M, Sennefelder L, eds. <i>Planen. Beteiligen.
    Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024
    in Bad Driburg &#38; Paderborn</i>. Vol Band 305. Schriften der Deutschen Vereinigung
    für Sportwissenschaft. Feldhaus; 2026:9-14.'
  apa: 'Meier, H., Kukuk, M., &#38; Sennefelder, L. (2026). Planen. Bauen. Beteiligen.
    Bewegen: Einführende Bemerkungen. In H. Meier, M. Kukuk, &#38; L. Sennefelder
    (Eds.), <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission
    „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn: Vol. Band
    305</i> (pp. 9–14). Feldhaus.'
  bibtex: '@inbook{Meier_Kukuk_Sennefelder_2026, series={Schriften der Deutschen Vereinigung
    für Sportwissenschaft}, title={Planen. Bauen. Beteiligen. Bewegen: Einführende
    Bemerkungen}, volume={Band 305}, booktitle={Planen. Beteiligen. Bauen. Bewegen.
    16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad
    Driburg &#38; Paderborn}, publisher={Feldhaus}, author={Meier, Heiko and Kukuk,
    Marc and Sennefelder, Lisa}, editor={Meier, Heiko and Kukuk, Marc and Sennefelder,
    Lisa}, year={2026}, pages={9–14}, collection={Schriften der Deutschen Vereinigung
    für Sportwissenschaft} }'
  chicago: 'Meier, Heiko, Marc Kukuk, and Lisa Sennefelder. “Planen. Bauen. Beteiligen.
    Bewegen: Einführende Bemerkungen.” In <i>Planen. Beteiligen. Bauen. Bewegen. 16.
    Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg
    &#38; Paderborn</i>, edited by Heiko Meier, Marc Kukuk, and Lisa Sennefelder,
    Band 305:9–14. Schriften der Deutschen Vereinigung für Sportwissenschaft. Feldhaus,
    2026.'
  ieee: 'H. Meier, M. Kukuk, and L. Sennefelder, “Planen. Bauen. Beteiligen. Bewegen:
    Einführende Bemerkungen,” in <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung
    der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>,
    vol. Band 305, H. Meier, M. Kukuk, and L. Sennefelder, Eds. Feldhaus, 2026, pp.
    9–14.'
  mla: 'Meier, Heiko, et al. “Planen. Bauen. Beteiligen. Bewegen: Einführende Bemerkungen.”
    <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport
    und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>, edited by Heiko
    Meier et al., vol. Band 305, Feldhaus, 2026, pp. 9–14.'
  short: 'H. Meier, M. Kukuk, L. Sennefelder, in: H. Meier, M. Kukuk, L. Sennefelder
    (Eds.), Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission
    „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn, Feldhaus,
    2026, pp. 9–14.'
date_created: 2026-05-27T14:28:37Z
date_updated: 2026-05-27T14:29:23Z
department:
- _id: '175'
editor:
- first_name: Heiko
  full_name: Meier, Heiko
  last_name: Meier
- first_name: Marc
  full_name: Kukuk, Marc
  last_name: Kukuk
- first_name: Lisa
  full_name: Sennefelder, Lisa
  last_name: Sennefelder
language:
- iso: ger
page: 9-14
publication: Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission
  „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg & Paderborn
publication_identifier:
  unknown:
  - '9783880207301'
publication_status: published
publisher: Feldhaus
series_title: Schriften der Deutschen Vereinigung für Sportwissenschaft
status: public
title: 'Planen. Bauen. Beteiligen. Bewegen: Einführende Bemerkungen'
type: book_chapter
user_id: '290'
volume: Band 305
year: '2026'
...
---
_id: '65707'
author:
- first_name: Jan Christian
  full_name: Pinsch, Jan Christian
  id: '23351'
  last_name: Pinsch
citation:
  ama: 'Pinsch JC. The Christian Right in Germany and the Alternative für Deutschland
    (AfD). Religious othering and group-focused enmity. In: Bergmann C, Temmerman
    J, eds. <i>Religious Diversity and Global Concerns</i>. ; 2026:169–184.'
  apa: Pinsch, J. C. (2026). The Christian Right in Germany and the Alternative für
    Deutschland (AfD). Religious othering and group-focused enmity. In C. Bergmann
    &#38; J. Temmerman (Eds.), <i>Religious Diversity and Global Concerns</i> (pp.
    169–184).
  bibtex: '@inbook{Pinsch_2026, place={Münster}, title={The Christian Right in Germany
    and the Alternative für Deutschland (AfD). Religious othering and group-focused
    enmity}, booktitle={Religious Diversity and Global Concerns}, author={Pinsch,
    Jan Christian}, editor={Bergmann, Claudia and Temmerman, Johan}, year={2026},
    pages={169–184} }'
  chicago: Pinsch, Jan Christian. “The Christian Right in Germany and the Alternative
    Für Deutschland (AfD). Religious Othering and Group-Focused Enmity.” In <i>Religious
    Diversity and Global Concerns</i>, edited by Claudia Bergmann and Johan Temmerman,
    169–184. Münster, 2026.
  ieee: J. C. Pinsch, “The Christian Right in Germany and the Alternative für Deutschland
    (AfD). Religious othering and group-focused enmity,” in <i>Religious Diversity
    and Global Concerns</i>, C. Bergmann and J. Temmerman, Eds. Münster, 2026, pp.
    169–184.
  mla: Pinsch, Jan Christian. “The Christian Right in Germany and the Alternative
    Für Deutschland (AfD). Religious Othering and Group-Focused Enmity.” <i>Religious
    Diversity and Global Concerns</i>, edited by Claudia Bergmann and Johan Temmerman,
    2026, pp. 169–184.
  short: 'J.C. Pinsch, in: C. Bergmann, J. Temmerman (Eds.), Religious Diversity and
    Global Concerns, Münster, 2026, pp. 169–184.'
date_created: 2026-05-28T08:30:22Z
date_updated: 2026-05-28T08:32:55Z
editor:
- first_name: Claudia
  full_name: Bergmann, Claudia
  last_name: Bergmann
- first_name: Johan
  full_name: Temmerman, Johan
  last_name: Temmerman
language:
- iso: eng
page: 169–184
place: Münster
publication: Religious Diversity and Global Concerns
status: public
title: The Christian Right in Germany and the Alternative für Deutschland (AfD). Religious
  othering and group-focused enmity
type: book_chapter
user_id: '23351'
year: '2026'
...
---
_id: '65719'
author:
- first_name: Hans-Jürgen
  full_name: Stoppel, Hans-Jürgen
  id: '101162'
  last_name: Stoppel
citation:
  ama: 'Stoppel H-J. Construction of Polygons with Scratch and Computational Thinking.
    In: Doorman M, Schäfer E, Maaß K, eds. Verlag für wissenschaftliche Texte und
    Medien.'
  apa: Stoppel, H.-J. (n.d.). <i>Construction of Polygons with Scratch and Computational
    Thinking</i> (M. Doorman, E. Schäfer, &#38; K. Maaß, Eds.). Verlag für wissenschaftliche
    Texte und Medien.
  bibtex: '@inproceedings{Stoppel, place={Münster}, title={Construction of Polygons
    with Scratch and Computational Thinking}, publisher={Verlag für wissenschaftliche
    Texte und Medien}, author={Stoppel, Hans-Jürgen}, editor={Doorman, Michiel and
    Schäfer, Elena and Maaß, Katja} }'
  chicago: 'Stoppel, Hans-Jürgen. “Construction of Polygons with Scratch and Computational
    Thinking.” edited by Michiel Doorman, Elena Schäfer, and Katja Maaß. Münster:
    Verlag für wissenschaftliche Texte und Medien, n.d.'
  ieee: H.-J. Stoppel, “Construction of Polygons with Scratch and Computational Thinking,”
    Limassol, Cyprus.
  mla: Stoppel, Hans-Jürgen. <i>Construction of Polygons with Scratch and Computational
    Thinking</i>. Edited by Michiel Doorman et al., Verlag für wissenschaftliche Texte
    und Medien.
  short: 'H.-J. Stoppel, in: M. Doorman, E. Schäfer, K. Maaß (Eds.), Verlag für wissenschaftliche
    Texte und Medien, Münster, n.d.'
conference:
  end_date: 2025-05-09
  location: Limassol, Cyprus
  name: 5th Educating the Educators Conference
  start_date: 2025-05-08
date_created: 2026-05-29T07:04:26Z
date_updated: 2026-05-29T08:24:12Z
editor:
- first_name: Michiel
  full_name: Doorman, Michiel
  last_name: Doorman
- first_name: Elena
  full_name: Schäfer, Elena
  last_name: Schäfer
- first_name: Katja
  full_name: Maaß, Katja
  last_name: Maaß
language:
- iso: eng
place: Münster
publication_status: inpress
publisher: Verlag für wissenschaftliche Texte und Medien
status: public
title: Construction of Polygons with Scratch and Computational Thinking
type: conference
user_id: '101162'
year: '2026'
...
---
_id: '65730'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>Is explainable
    AI feasible and desirable, and are explanations of AI decisions always good? Many
    answer this question in the affirmative, but there is a growing discourse that
    is suspicious of the promises of explainable AI used to explain decisions towards
    users, considering it unfeasible, undesirable, and even potentially misleading.
    Could explainable AI be just a rhetorical foil? This paper proposes that, yes,
    explainable AI is a rhetorical technology but no, this does not necessarily make
    it undesirable. It starts by revisiting this debate according to the initial charge
    against rhetorics by Plato and Aristotle’s response, considering rhetoric pharmacologically,
    as not only a poison but also a cure for political life. It argues that, just
    as rhetoric was necessary to take care of the temporalities of public life, in
    court, the public event, and the assembly, so may explainable AI contribute to
    a rhetorical context. Yet, whether it does so is conditioned on the extent to
    which it cultivates the civic virtues relative to a respective context. The paper
    considers the examples of predictive policing, credit scoring, and prediction
    markets to argue about ideal states – civic virtues that may be cultivated in
    each appropriate context – and deviations that point at the risks of explainable
    AI to lead to domination, conformism, and political recalcitrance.</jats:p>"
article_type: original
author:
- first_name: Wessel
  full_name: Reijers, Wessel
  last_name: Reijers
citation:
  ama: 'Reijers W. Explainable AI as a Rhetorical Technology: Promoting Civic Virtue
    in the Age of AI. <i>Topoi</i>. Published online 2026. doi:<a href="https://doi.org/10.1007/s11245-026-10451-0">10.1007/s11245-026-10451-0</a>'
  apa: 'Reijers, W. (2026). Explainable AI as a Rhetorical Technology: Promoting Civic
    Virtue in the Age of AI. <i>Topoi</i>. <a href="https://doi.org/10.1007/s11245-026-10451-0">https://doi.org/10.1007/s11245-026-10451-0</a>'
  bibtex: '@article{Reijers_2026, title={Explainable AI as a Rhetorical Technology:
    Promoting Civic Virtue in the Age of AI}, DOI={<a href="https://doi.org/10.1007/s11245-026-10451-0">10.1007/s11245-026-10451-0</a>},
    journal={Topoi}, publisher={Springer Science and Business Media LLC}, author={Reijers,
    Wessel}, year={2026} }'
  chicago: 'Reijers, Wessel. “Explainable AI as a Rhetorical Technology: Promoting
    Civic Virtue in the Age of AI.” <i>Topoi</i>, 2026. <a href="https://doi.org/10.1007/s11245-026-10451-0">https://doi.org/10.1007/s11245-026-10451-0</a>.'
  ieee: 'W. Reijers, “Explainable AI as a Rhetorical Technology: Promoting Civic Virtue
    in the Age of AI,” <i>Topoi</i>, 2026, doi: <a href="https://doi.org/10.1007/s11245-026-10451-0">10.1007/s11245-026-10451-0</a>.'
  mla: 'Reijers, Wessel. “Explainable AI as a Rhetorical Technology: Promoting Civic
    Virtue in the Age of AI.” <i>Topoi</i>, Springer Science and Business Media LLC,
    2026, doi:<a href="https://doi.org/10.1007/s11245-026-10451-0">10.1007/s11245-026-10451-0</a>.'
  short: W. Reijers, Topoi (2026).
date_created: 2026-05-29T12:04:50Z
date_updated: 2026-05-29T12:07:55Z
ddc:
- '140'
doi: 10.1007/s11245-026-10451-0
file:
- access_level: closed
  content_type: application/pdf
  creator: wreijers
  date_created: 2026-05-29T12:06:10Z
  date_updated: 2026-05-29T12:06:10Z
  file_id: '65731'
  file_name: 2026_Reijers_XAI as a Rhetorical Technology.pdf
  file_size: 844081
  relation: main_file
  success: 1
file_date_updated: 2026-05-29T12:06:10Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://link.springer.com/article/10.1007/s11245-026-10451-0
oa: '1'
project:
- _id: '2718'
  name: TRR 318-2 - Constructing Explainability
publication: Topoi
publication_identifier:
  issn:
  - 0167-7411
  - 1572-8749
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: 'Explainable AI as a Rhetorical Technology: Promoting Civic Virtue in the Age
  of AI'
type: journal_article
user_id: '102524'
year: '2026'
...
---
_id: '65733'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>\r\n                    In
    this paper, we study the computation of shortest paths within the\r\n                    <jats:italic>geometric
    amoebot model</jats:italic>\r\n                    , a commonly used model for
    programmable matter. Shortest paths are essential for various tasks and therefore
    have been heavily investigated in many different contexts. We consider the\r\n
    \                   <jats:italic>reconfigurable circuit extension</jats:italic>\r\n
    \                   of the model where the amoebot structure is able to interconnect
    amoebots by so-called circuits. These circuits permit the instantaneous transmission
    of simple signals between connected amoebots. We propose distributed algorithms
    for the\r\n                    <jats:italic>shortest path forest problem</jats:italic>\r\n
    \                   where, given a set of\r\n                    <jats:italic>k</jats:italic>\r\n
    \                   sources and a set of\r\n                    <jats:inline-formula>\r\n
    \                     <jats:alternatives>\r\n                        <jats:tex-math>$$\\ell
    $$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n
    \                         <mml:mi>ℓ</mml:mi>\r\n                        </mml:math>\r\n
    \                     </jats:alternatives>\r\n                    </jats:inline-formula>\r\n
    \                   destinations, the amoebot structure has to compute a forest
    that connects each destination to its closest source on a shortest path. Our main
    results are two algorithms for hole-free structures. The first algorithm constructs
    a shortest path tree for a single source within\r\n                    <jats:inline-formula>\r\n
    \                     <jats:alternatives>\r\n                        <jats:tex-math>$$O(\\log
    \\ell )$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n
    \                         <mml:mrow>\r\n                            <mml:mi>O</mml:mi>\r\n
    \                           <mml:mo>(</mml:mo>\r\n                            <mml:mo>log</mml:mo>\r\n
    \                           <mml:mi>ℓ</mml:mi>\r\n                            <mml:mo>)</mml:mo>\r\n
    \                         </mml:mrow>\r\n                        </mml:math>\r\n
    \                     </jats:alternatives>\r\n                    </jats:inline-formula>\r\n
    \                   rounds, and the second algorithm a shortest path forest for
    an arbitrary number of sources within\r\n                    <jats:inline-formula>\r\n
    \                     <jats:alternatives>\r\n                        <jats:tex-math>$$O(\\log
    n \\log ^2 k)$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n
    \                         <mml:mrow>\r\n                            <mml:mi>O</mml:mi>\r\n
    \                           <mml:mo>(</mml:mo>\r\n                            <mml:mo>log</mml:mo>\r\n
    \                           <mml:mi>n</mml:mi>\r\n                            <mml:msup>\r\n
    \                             <mml:mo>log</mml:mo>\r\n                              <mml:mn>2</mml:mn>\r\n
    \                           </mml:msup>\r\n                            <mml:mi>k</mml:mi>\r\n
    \                           <mml:mo>)</mml:mo>\r\n                          </mml:mrow>\r\n
    \                       </mml:math>\r\n                      </jats:alternatives>\r\n
    \                   </jats:inline-formula>\r\n                    rounds. The
    former algorithm also provides an\r\n                    <jats:italic>O</jats:italic>\r\n
    \                   (1) rounds solution for the\r\n                    <jats:italic>single
    pair shortest path problem</jats:italic>\r\n                    (SPSP) and an\r\n
    \                   <jats:inline-formula>\r\n                      <jats:alternatives>\r\n
    \                       <jats:tex-math>$$O(\\log n)$$</jats:tex-math>\r\n                        <mml:math
    xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n
    \                           <mml:mi>O</mml:mi>\r\n                            <mml:mo>(</mml:mo>\r\n
    \                           <mml:mo>log</mml:mo>\r\n                            <mml:mi>n</mml:mi>\r\n
    \                           <mml:mo>)</mml:mo>\r\n                          </mml:mrow>\r\n
    \                       </mml:math>\r\n                      </jats:alternatives>\r\n
    \                   </jats:inline-formula>\r\n                    rounds solution
    for the\r\n                    <jats:italic>single source shortest path problem</jats:italic>\r\n
    \                   (SSSP) since these problems are special cases of the considered
    problem. Then, we adapt the latter algorithm to an offset version of the problem.
    This allows us to solve the problem for amoebot structures with holes within\r\n
    \                   <jats:inline-formula>\r\n                      <jats:alternatives>\r\n
    \                       <jats:tex-math>$$O(h \\log ^3 n)$$</jats:tex-math>\r\n
    \                       <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n
    \                         <mml:mrow>\r\n                            <mml:mi>O</mml:mi>\r\n
    \                           <mml:mo>(</mml:mo>\r\n                            <mml:mi>h</mml:mi>\r\n
    \                           <mml:msup>\r\n                              <mml:mo>log</mml:mo>\r\n
    \                             <mml:mn>3</mml:mn>\r\n                            </mml:msup>\r\n
    \                           <mml:mi>n</mml:mi>\r\n                            <mml:mo>)</mml:mo>\r\n
    \                         </mml:mrow>\r\n                        </mml:math>\r\n
    \                     </jats:alternatives>\r\n                    </jats:inline-formula>\r\n
    \                   rounds w.h.p. where\r\n                    <jats:italic>h</jats:italic>\r\n
    \                   denotes the number of holes.\r\n                  </jats:p>"
article_number: '15'
author:
- first_name: Andreas
  full_name: Padalkin, Andreas
  id: '88238'
  last_name: Padalkin
- first_name: Christian
  full_name: Scheideler, Christian
  id: '20792'
  last_name: Scheideler
citation:
  ama: Padalkin A, Scheideler C. Polylogarithmic time algorithms for shortest path
    forests in programmable matter. <i>Distributed Computing</i>. 2026;39(2). doi:<a
    href="https://doi.org/10.1007/s00446-026-00505-2">10.1007/s00446-026-00505-2</a>
  apa: Padalkin, A., &#38; Scheideler, C. (2026). Polylogarithmic time algorithms
    for shortest path forests in programmable matter. <i>Distributed Computing</i>,
    <i>39</i>(2), Article 15. <a href="https://doi.org/10.1007/s00446-026-00505-2">https://doi.org/10.1007/s00446-026-00505-2</a>
  bibtex: '@article{Padalkin_Scheideler_2026, title={Polylogarithmic time algorithms
    for shortest path forests in programmable matter}, volume={39}, DOI={<a href="https://doi.org/10.1007/s00446-026-00505-2">10.1007/s00446-026-00505-2</a>},
    number={215}, journal={Distributed Computing}, publisher={Springer Science and
    Business Media LLC}, author={Padalkin, Andreas and Scheideler, Christian}, year={2026}
    }'
  chicago: Padalkin, Andreas, and Christian Scheideler. “Polylogarithmic Time Algorithms
    for Shortest Path Forests in Programmable Matter.” <i>Distributed Computing</i>
    39, no. 2 (2026). <a href="https://doi.org/10.1007/s00446-026-00505-2">https://doi.org/10.1007/s00446-026-00505-2</a>.
  ieee: 'A. Padalkin and C. Scheideler, “Polylogarithmic time algorithms for shortest
    path forests in programmable matter,” <i>Distributed Computing</i>, vol. 39, no.
    2, Art. no. 15, 2026, doi: <a href="https://doi.org/10.1007/s00446-026-00505-2">10.1007/s00446-026-00505-2</a>.'
  mla: Padalkin, Andreas, and Christian Scheideler. “Polylogarithmic Time Algorithms
    for Shortest Path Forests in Programmable Matter.” <i>Distributed Computing</i>,
    vol. 39, no. 2, 15, Springer Science and Business Media LLC, 2026, doi:<a href="https://doi.org/10.1007/s00446-026-00505-2">10.1007/s00446-026-00505-2</a>.
  short: A. Padalkin, C. Scheideler, Distributed Computing 39 (2026).
date_created: 2026-05-29T12:11:32Z
date_updated: 2026-05-29T12:13:09Z
department:
- _id: '34'
- _id: '7'
- _id: '79'
doi: 10.1007/s00446-026-00505-2
intvolume: '        39'
issue: '2'
language:
- iso: eng
publication: Distributed Computing
publication_identifier:
  issn:
  - 0178-2770
  - 1432-0452
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Polylogarithmic time algorithms for shortest path forests in programmable matter
type: journal_article
user_id: '15578'
volume: 39
year: '2026'
...
---
_id: '65724'
author:
- first_name: Franz
  full_name: Strich, Franz
  id: '122631'
  last_name: Strich
  orcid: 0000-0002-0170-9025
- first_name: Simon Thanh-Nam
  full_name: Trang, Simon Thanh-Nam
  id: '98948'
  last_name: Trang
  orcid: 0000-0002-4784-4038
citation:
  ama: 'Strich F, Trang ST-N. <i>Arbeitsplatz-KI: Zwölf Gestaltungsanker zur erfolgreichen 
    Ko-Transformation von Mitarbeitenden,  Prozessen &#38; Strategie in der  Finanzindustrie</i>.;
    2026.'
  apa: 'Strich, F., &#38; Trang, S. T.-N. (2026). <i>Arbeitsplatz-KI: Zwölf Gestaltungsanker
    zur erfolgreichen  Ko-Transformation von Mitarbeitenden,  Prozessen &#38; Strategie
    in der  Finanzindustrie</i>.'
  bibtex: '@book{Strich_Trang_2026, place={Paderborn}, title={Arbeitsplatz-KI: Zwölf
    Gestaltungsanker zur erfolgreichen  Ko-Transformation von Mitarbeitenden,  Prozessen
    &#38; Strategie in der  Finanzindustrie}, author={Strich, Franz and Trang, Simon
    Thanh-Nam}, year={2026} }'
  chicago: 'Strich, Franz, and Simon Thanh-Nam Trang. <i>Arbeitsplatz-KI: Zwölf Gestaltungsanker
    zur erfolgreichen  Ko-Transformation von Mitarbeitenden,  Prozessen &#38; Strategie
    in der  Finanzindustrie</i>. Paderborn, 2026.'
  ieee: 'F. Strich and S. T.-N. Trang, <i>Arbeitsplatz-KI: Zwölf Gestaltungsanker
    zur erfolgreichen  Ko-Transformation von Mitarbeitenden,  Prozessen &#38; Strategie
    in der  Finanzindustrie</i>. Paderborn, 2026.'
  mla: 'Strich, Franz, and Simon Thanh-Nam Trang. <i>Arbeitsplatz-KI: Zwölf Gestaltungsanker
    zur erfolgreichen  Ko-Transformation von Mitarbeitenden,  Prozessen &#38; Strategie
    in der  Finanzindustrie</i>. 2026.'
  short: 'F. Strich, S.T.-N. Trang, Arbeitsplatz-KI: Zwölf Gestaltungsanker zur erfolgreichen 
    Ko-Transformation von Mitarbeitenden,  Prozessen &#38; Strategie in der  Finanzindustrie,
    Paderborn, 2026.'
date_created: 2026-05-29T10:08:48Z
date_updated: 2026-05-29T10:08:57Z
ddc:
- '650'
department:
- _id: '792'
file:
- access_level: closed
  content_type: application/pdf
  creator: strang
  date_created: 2026-05-29T10:07:30Z
  date_updated: 2026-05-29T10:07:30Z
  file_id: '65725'
  file_name: UPB_Whitepaper_Arbeitsplatz_KI_2026.pdf
  file_size: 4176802
  relation: main_file
  success: 1
file_date_updated: 2026-05-29T10:07:30Z
has_accepted_license: '1'
language:
- iso: ger
page: '41'
place: Paderborn
status: public
title: 'Arbeitsplatz-KI: Zwölf Gestaltungsanker zur erfolgreichen  Ko-Transformation
  von Mitarbeitenden,  Prozessen & Strategie in der  Finanzindustrie'
type: working_paper
user_id: '98948'
year: '2026'
...
---
_id: '65737'
abstract:
- lang: eng
  text: 'We examine German individuals'' preferences for income and wealth taxation
    and, importantly, the interplay between these two tax instruments. While prior
    research often examines wealth tax preferences in isolation, actual tax systems
    consist of multiple interacting taxes. To capture this dynamic, we elicit preferred
    tax burdens in a large-scale online experiment with 2,702 participants randomly
    assigned to one of four treatment groups: respondents state either an unspecified
    overall tax burden, separate income and wealth tax burdens, an income tax burden
    only, or a wealth tax burden only. Our baseline estimates reveal average (marginal)
    tax rates of approximately 17.4% (18.9%) for income and 4.1% (2.3%) for wealth.
    We find that participants associate wealth with an ability-to-pay taxes: when
    a wealth tax is not explicitly available, preferred income tax rates are approximately
    30% higher. However, when both instruments are available, participants do not
    treat them as substitutes. Instead, they appear to treat the two taxes as separate
    mental bins: the standalone income and wealth tax burdens are combined in a notably
    additive manner, resulting in a significantly higher overall tax burden. Further,
    respondents apply implicit exemptions for low levels of wealth and favor a wealth
    tax base focused primarily on financial assets and real estate other than the
    primary residence.'
author:
- first_name: Ralf
  full_name: Maiterth, Ralf
  last_name: Maiterth
- first_name: Yuri
  full_name: Piper, Yuri
  id: '49955'
  last_name: Piper
- first_name: Cornelius
  full_name: Schneider, Cornelius
  last_name: Schneider
citation:
  ama: Maiterth R, Piper Y, Schneider C. <i>Preferences for Taxing Wealth and Income</i>.;
    2026. doi:<a href="https://doi.org/10.2139/ssrn.6832418">10.2139/ssrn.6832418</a>
  apa: Maiterth, R., Piper, Y., &#38; Schneider, C. (2026). <i>Preferences for Taxing
    Wealth and Income</i>. <a href="https://doi.org/10.2139/ssrn.6832418">https://doi.org/10.2139/ssrn.6832418</a>
  bibtex: '@book{Maiterth_Piper_Schneider_2026, series={TRR 266 Accounting for Transparency
    Working Paper Series No. 239}, title={Preferences for Taxing Wealth and Income},
    DOI={<a href="https://doi.org/10.2139/ssrn.6832418">10.2139/ssrn.6832418</a>},
    author={Maiterth, Ralf and Piper, Yuri and Schneider, Cornelius}, year={2026},
    collection={TRR 266 Accounting for Transparency Working Paper Series No. 239}
    }'
  chicago: Maiterth, Ralf, Yuri Piper, and Cornelius Schneider. <i>Preferences for
    Taxing Wealth and Income</i>. TRR 266 Accounting for Transparency Working Paper
    Series No. 239, 2026. <a href="https://doi.org/10.2139/ssrn.6832418">https://doi.org/10.2139/ssrn.6832418</a>.
  ieee: R. Maiterth, Y. Piper, and C. Schneider, <i>Preferences for Taxing Wealth
    and Income</i>. 2026.
  mla: Maiterth, Ralf, et al. <i>Preferences for Taxing Wealth and Income</i>. 2026,
    doi:<a href="https://doi.org/10.2139/ssrn.6832418">10.2139/ssrn.6832418</a>.
  short: R. Maiterth, Y. Piper, C. Schneider, Preferences for Taxing Wealth and Income,
    2026.
date_created: 2026-06-01T06:46:10Z
date_updated: 2026-06-01T06:47:26Z
department:
- _id: '187'
doi: 10.2139/ssrn.6832418
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
series_title: TRR 266 Accounting for Transparency Working Paper Series No. 239
status: public
title: Preferences for Taxing Wealth and Income
type: working_paper
user_id: '96670'
year: '2026'
...
---
_id: '65738'
author:
- first_name: Alexander
  full_name: Kirsch, Alexander
  id: '59797'
  last_name: Kirsch
  orcid: 0000-0003-1650-0440
- first_name: Frank
  full_name: Hellmich, Frank
  id: '26282'
  last_name: Hellmich
- first_name: Eva
  full_name: Blumberg, Eva
  id: '37549'
  last_name: Blumberg
  orcid: 0009-0004-1651-541X
- first_name: Ricardo
  full_name: Puppe, Ricardo
  id: '103297'
  last_name: Puppe
citation:
  ama: 'Kirsch A, Hellmich F, Blumberg E, Puppe R. Wie kommt der „grüne“ Strom in
    die Steckdose? – Eine multidimensionale Analyse der Vorstellungen von Grundschulkindern
    zu nachhaltiger Energienutzung. In: Beudels M, Henrichwark C, eds. <i>Vorstellungen
    von Kindern Zu Themenfeldern Der Nachhaltigkeit</i>. Klinkhardt; 2026:288-304.'
  apa: Kirsch, A., Hellmich, F., Blumberg, E., &#38; Puppe, R. (2026). Wie kommt der
    „grüne“ Strom in die Steckdose? – Eine multidimensionale Analyse der Vorstellungen
    von Grundschulkindern zu nachhaltiger Energienutzung. In M. Beudels &#38; C. Henrichwark
    (Eds.), <i>Vorstellungen von Kindern zu Themenfeldern der Nachhaltigkeit</i> (pp.
    288–304). Klinkhardt.
  bibtex: '@inbook{Kirsch_Hellmich_Blumberg_Puppe_2026, title={Wie kommt der „grüne“
    Strom in die Steckdose? – Eine multidimensionale Analyse der Vorstellungen von
    Grundschulkindern zu nachhaltiger Energienutzung}, booktitle={Vorstellungen von
    Kindern zu Themenfeldern der Nachhaltigkeit}, publisher={Klinkhardt}, author={Kirsch,
    Alexander and Hellmich, Frank and Blumberg, Eva and Puppe, Ricardo}, editor={Beudels,
    M and Henrichwark, C}, year={2026}, pages={288–304} }'
  chicago: Kirsch, Alexander, Frank Hellmich, Eva Blumberg, and Ricardo Puppe. “Wie
    Kommt Der „grüne“ Strom in Die Steckdose? – Eine Multidimensionale Analyse Der
    Vorstellungen von Grundschulkindern Zu Nachhaltiger Energienutzung.” In <i>Vorstellungen
    von Kindern Zu Themenfeldern Der Nachhaltigkeit</i>, edited by M Beudels and C
    Henrichwark, 288–304. Klinkhardt, 2026.
  ieee: A. Kirsch, F. Hellmich, E. Blumberg, and R. Puppe, “Wie kommt der „grüne“
    Strom in die Steckdose? – Eine multidimensionale Analyse der Vorstellungen von
    Grundschulkindern zu nachhaltiger Energienutzung,” in <i>Vorstellungen von Kindern
    zu Themenfeldern der Nachhaltigkeit</i>, M. Beudels and C. Henrichwark, Eds. Klinkhardt,
    2026, pp. 288–304.
  mla: Kirsch, Alexander, et al. “Wie Kommt Der „grüne“ Strom in Die Steckdose? –
    Eine Multidimensionale Analyse Der Vorstellungen von Grundschulkindern Zu Nachhaltiger
    Energienutzung.” <i>Vorstellungen von Kindern Zu Themenfeldern Der Nachhaltigkeit</i>,
    edited by M Beudels and C Henrichwark, Klinkhardt, 2026, pp. 288–304.
  short: 'A. Kirsch, F. Hellmich, E. Blumberg, R. Puppe, in: M. Beudels, C. Henrichwark
    (Eds.), Vorstellungen von Kindern Zu Themenfeldern Der Nachhaltigkeit, Klinkhardt,
    2026, pp. 288–304.'
date_created: 2026-06-01T07:03:58Z
date_updated: 2026-06-01T07:04:07Z
department:
- _id: '460'
editor:
- first_name: M
  full_name: Beudels, M
  last_name: Beudels
- first_name: C
  full_name: Henrichwark, C
  last_name: Henrichwark
language:
- iso: eng
page: 288-304
publication: Vorstellungen von Kindern zu Themenfeldern der Nachhaltigkeit
publisher: Klinkhardt
status: public
title: Wie kommt der „grüne“ Strom in die Steckdose? – Eine multidimensionale Analyse
  der Vorstellungen von Grundschulkindern zu nachhaltiger Energienutzung
type: book_chapter
user_id: '57672'
year: '2026'
...
---
_id: '65739'
article_number: '16.5'
author:
- first_name: Volker
  full_name: Garske, Volker
  id: '162'
  last_name: Garske
citation:
  ama: Garske V. Schattenprinzip und Klimawandel - Entwicklungschancen für Lehrende
    und Lernende im Kontext des Ökologischen Lernens, erarbeitet am Beispiel der Massentierhaltung
    . <i>Handbuch der Religionen</i>. 2026;(88).
  apa: Garske, V. (2026). Schattenprinzip und Klimawandel - Entwicklungschancen für
    Lehrende und Lernende im Kontext des Ökologischen Lernens, erarbeitet am Beispiel
    der Massentierhaltung . <i>Handbuch Der Religionen</i>, <i>88</i>, Article 16.5.
  bibtex: '@article{Garske_2026, title={Schattenprinzip und Klimawandel - Entwicklungschancen
    für Lehrende und Lernende im Kontext des Ökologischen Lernens, erarbeitet am Beispiel
    der Massentierhaltung }, number={8816.5}, journal={Handbuch der Religionen}, publisher={Westarp
    Science}, author={Garske, Volker}, year={2026} }'
  chicago: Garske, Volker. “Schattenprinzip Und Klimawandel - Entwicklungschancen
    Für Lehrende Und Lernende Im Kontext Des Ökologischen Lernens, Erarbeitet Am Beispiel
    Der Massentierhaltung .” <i>Handbuch Der Religionen</i>, no. 88 (2026).
  ieee: V. Garske, “Schattenprinzip und Klimawandel - Entwicklungschancen für Lehrende
    und Lernende im Kontext des Ökologischen Lernens, erarbeitet am Beispiel der Massentierhaltung
    ,” <i>Handbuch der Religionen</i>, no. 88, Art. no. 16.5, 2026.
  mla: Garske, Volker. “Schattenprinzip Und Klimawandel - Entwicklungschancen Für
    Lehrende Und Lernende Im Kontext Des Ökologischen Lernens, Erarbeitet Am Beispiel
    Der Massentierhaltung .” <i>Handbuch Der Religionen</i>, no. 88, 16.5, Westarp
    Science, 2026.
  short: V. Garske, Handbuch Der Religionen (2026).
date_created: 2026-06-01T07:14:59Z
date_updated: 2026-06-01T07:15:38Z
department:
- _id: '36'
issue: '88'
language:
- iso: eng
publication: Handbuch der Religionen
publication_identifier:
  unknown:
  - 'ISBN: 978-3-86617-521-1 '
publisher: Westarp Science
quality_controlled: '1'
status: public
title: 'Schattenprinzip und Klimawandel - Entwicklungschancen für Lehrende und Lernende
  im Kontext des Ökologischen Lernens, erarbeitet am Beispiel der Massentierhaltung '
type: journal_article
user_id: '162'
year: '2026'
...
---
_id: '65736'
author:
- first_name: Louis Mozart
  full_name: Kamdem Teyou, Louis Mozart
  id: '101165'
  last_name: Kamdem Teyou
- first_name: Caglar
  full_name: Demir, Caglar
  last_name: Demir
- first_name: Axel-Cyrille
  full_name: Ngonga Ngomo, Axel-Cyrille
  id: '65716'
  last_name: Ngonga Ngomo
citation:
  ama: 'Kamdem Teyou LM, Demir C, Ngonga Ngomo A-C. Semantics-Aware Caching for Concept
    Learning. In: <i>Lecture Notes in Computer Science</i>. Springer Nature Switzerland;
    2026. doi:<a href="https://doi.org/10.1007/978-3-032-25156-5_26">10.1007/978-3-032-25156-5_26</a>'
  apa: Kamdem Teyou, L. M., Demir, C., &#38; Ngonga Ngomo, A.-C. (2026). Semantics-Aware
    Caching for Concept Learning. In <i>Lecture Notes in Computer Science</i>. Springer
    Nature Switzerland. <a href="https://doi.org/10.1007/978-3-032-25156-5_26">https://doi.org/10.1007/978-3-032-25156-5_26</a>
  bibtex: '@inbook{Kamdem Teyou_Demir_Ngonga Ngomo_2026, place={Cham}, title={Semantics-Aware
    Caching for Concept Learning}, DOI={<a href="https://doi.org/10.1007/978-3-032-25156-5_26">10.1007/978-3-032-25156-5_26</a>},
    booktitle={Lecture Notes in Computer Science}, publisher={Springer Nature Switzerland},
    author={Kamdem Teyou, Louis Mozart and Demir, Caglar and Ngonga Ngomo, Axel-Cyrille},
    year={2026} }'
  chicago: 'Kamdem Teyou, Louis Mozart, Caglar Demir, and Axel-Cyrille Ngonga Ngomo.
    “Semantics-Aware Caching for Concept Learning.” In <i>Lecture Notes in Computer
    Science</i>. Cham: Springer Nature Switzerland, 2026. <a href="https://doi.org/10.1007/978-3-032-25156-5_26">https://doi.org/10.1007/978-3-032-25156-5_26</a>.'
  ieee: 'L. M. Kamdem Teyou, C. Demir, and A.-C. Ngonga Ngomo, “Semantics-Aware Caching
    for Concept Learning,” in <i>Lecture Notes in Computer Science</i>, Cham: Springer
    Nature Switzerland, 2026.'
  mla: Kamdem Teyou, Louis Mozart, et al. “Semantics-Aware Caching for Concept Learning.”
    <i>Lecture Notes in Computer Science</i>, Springer Nature Switzerland, 2026, doi:<a
    href="https://doi.org/10.1007/978-3-032-25156-5_26">10.1007/978-3-032-25156-5_26</a>.
  short: 'L.M. Kamdem Teyou, C. Demir, A.-C. Ngonga Ngomo, in: Lecture Notes in Computer
    Science, Springer Nature Switzerland, Cham, 2026.'
date_created: 2026-05-29T14:22:42Z
date_updated: 2026-05-29T14:23:47Z
doi: 10.1007/978-3-032-25156-5_26
language:
- iso: eng
place: Cham
publication: Lecture Notes in Computer Science
publication_identifier:
  isbn:
  - '9783032251558'
  - '9783032251565'
  issn:
  - 0302-9743
  - 1611-3349
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Semantics-Aware Caching for Concept Learning
type: book_chapter
user_id: '101165'
year: '2026'
...
---
_id: '65735'
author:
- first_name: Isaac
  full_name: Roberts, Isaac
  last_name: Roberts
- first_name: Louis Mozart
  full_name: Kamdem Teyou, Louis Mozart
  id: '101165'
  last_name: Kamdem Teyou
- first_name: Alexander
  full_name: Schulz, Alexander
  last_name: Schulz
- first_name: N'Dah Jean
  full_name: Kouagou, N'Dah Jean
  last_name: Kouagou
- first_name: Axel-Cyrille
  full_name: Ngonga Ngomo, Axel-Cyrille
  id: '65716'
  last_name: Ngonga Ngomo
- first_name: Barbara
  full_name: Hammer, Barbara
  last_name: Hammer
citation:
  ama: 'Roberts I, Kamdem Teyou LM, Schulz A, Kouagou NJ, Ngonga Ngomo A-C, Hammer
    B. A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras.
    In: <i>ESANN 2026 Proceedings</i>. Ciaco - i6doc.com; 2026. doi:<a href="https://doi.org/10.14428/esann/2026.es2026-283">10.14428/esann/2026.es2026-283</a>'
  apa: Roberts, I., Kamdem Teyou, L. M., Schulz, A., Kouagou, N. J., Ngonga Ngomo,
    A.-C., &#38; Hammer, B. (2026). A Possible Human-Centered Embedding Space Search
    in Degenerate Clifford Algebras. <i>ESANN 2026 Proceedings</i>. <a href="https://doi.org/10.14428/esann/2026.es2026-283">https://doi.org/10.14428/esann/2026.es2026-283</a>
  bibtex: '@inproceedings{Roberts_Kamdem Teyou_Schulz_Kouagou_Ngonga Ngomo_Hammer_2026,
    title={A Possible Human-Centered Embedding Space Search in Degenerate Clifford
    Algebras}, DOI={<a href="https://doi.org/10.14428/esann/2026.es2026-283">10.14428/esann/2026.es2026-283</a>},
    booktitle={ESANN 2026 proceedings}, publisher={Ciaco - i6doc.com}, author={Roberts,
    Isaac and Kamdem Teyou, Louis Mozart and Schulz, Alexander and Kouagou, N’Dah
    Jean and Ngonga Ngomo, Axel-Cyrille and Hammer, Barbara}, year={2026} }'
  chicago: Roberts, Isaac, Louis Mozart Kamdem Teyou, Alexander Schulz, N’Dah Jean
    Kouagou, Axel-Cyrille Ngonga Ngomo, and Barbara Hammer. “A Possible Human-Centered
    Embedding Space Search in Degenerate Clifford Algebras.” In <i>ESANN 2026 Proceedings</i>.
    Ciaco - i6doc.com, 2026. <a href="https://doi.org/10.14428/esann/2026.es2026-283">https://doi.org/10.14428/esann/2026.es2026-283</a>.
  ieee: 'I. Roberts, L. M. Kamdem Teyou, A. Schulz, N. J. Kouagou, A.-C. Ngonga Ngomo,
    and B. Hammer, “A Possible Human-Centered Embedding Space Search in Degenerate
    Clifford Algebras,” 2026, doi: <a href="https://doi.org/10.14428/esann/2026.es2026-283">10.14428/esann/2026.es2026-283</a>.'
  mla: Roberts, Isaac, et al. “A Possible Human-Centered Embedding Space Search in
    Degenerate Clifford Algebras.” <i>ESANN 2026 Proceedings</i>, Ciaco - i6doc.com,
    2026, doi:<a href="https://doi.org/10.14428/esann/2026.es2026-283">10.14428/esann/2026.es2026-283</a>.
  short: 'I. Roberts, L.M. Kamdem Teyou, A. Schulz, N.J. Kouagou, A.-C. Ngonga Ngomo,
    B. Hammer, in: ESANN 2026 Proceedings, Ciaco - i6doc.com, 2026.'
date_created: 2026-05-29T14:18:30Z
date_updated: 2026-05-29T14:23:40Z
doi: 10.14428/esann/2026.es2026-283
language:
- iso: eng
publication: ESANN 2026 proceedings
publication_status: published
publisher: Ciaco - i6doc.com
status: public
title: A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras
type: conference
user_id: '101165'
year: '2026'
...
---
_id: '65741'
abstract:
- lang: eng
  text: "<jats:p>\r\n                    This work investigates the temperature dependence
    of the lattice constant\r\n                    <jats:italic>a</jats:italic>\r\n
    \                   <jats:sub>exp</jats:sub>\r\n                    of cubic GaN/3C‐SiC/Si
    (001) epilayers grown at 740°C by plasma‐assisted molecular beam epitaxy is investigated.
    High resolution X‐ray diffraction is performed to determine the lattice constant,
    using an Anton–Paar DHS1100 stage to vary the sample temperature from 25°C to
    900°C, calibrated against the underlying single‐crystalline silicon substrate.
    A linear increase in\r\n                    <jats:italic>a</jats:italic>\r\n                    <jats:sub>exp</jats:sub>\r\n
    \                   with rising temperature is observed. The thermal expansion
    behaviour is modelled using Debye´s phonon dispersion. The fitted lattice parameters
    are used to calculate the thermal expansion coefficient (TEC). At room temperature
    the TEC is determined to be\r\n                    <jats:italic>α</jats:italic>\r\n
    \                   <jats:sub>Debye </jats:sub>\r\n                    ≈ 5.25
    × 10\r\n                    <jats:sup>−6</jats:sup>\r\n                     K\r\n
    \                   <jats:sup>−1</jats:sup>\r\n                    . We further
    compare the TEC of the cubic GaN epilayer to that of free‐standing hexagonal GaN
    using the crystallographic relationship of , demonstrating good agreement between
    both phases. Using literature values for the elastic constants of cubic GaN, the
    corresponding elastic moduli and Debye temperature Θ\r\n                    <jats:sub>D</jats:sub>\r\n
    \                   are calculated. An average value of Θ\r\n                    <jats:sub>D</jats:sub>\r\n
    \                   of ≈905 ± 25 K is obtained, which is very close to our experimental
    results. Moreover, tensile strain is found to be present in our sample at room
    temperature, leading to an increase in the TEC. The impact of strain on the thermal
    properties of cubic GaN is discussed.\r\n                  </jats:p>"
article_number: e202500477
article_type: original
author:
- first_name: Donat Josef
  full_name: As, Donat Josef
  id: '14'
  last_name: As
  orcid: 0000-0003-1121-3565
- first_name: Falco
  full_name: Meier, Falco
  last_name: Meier
- first_name: Pascal
  full_name: Mahler, Pascal
  last_name: Mahler
- first_name: Cedrik
  full_name: Meier, Cedrik
  id: '20798'
  last_name: Meier
  orcid: https://orcid.org/0000-0002-3787-3572
citation:
  ama: As DJ, Meier F, Mahler P, Meier C. X‐Ray Investigation of the Thermal Expansion
    Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates. <i>physica
    status solidi (b)</i>. 2026;263(2). doi:<a href="https://doi.org/10.1002/pssb.202500477">10.1002/pssb.202500477</a>
  apa: As, D. J., Meier, F., Mahler, P., &#38; Meier, C. (2026). X‐Ray Investigation
    of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si
    (001) Substrates. <i>Physica Status Solidi (b)</i>, <i>263</i>(2), Article e202500477.
    <a href="https://doi.org/10.1002/pssb.202500477">https://doi.org/10.1002/pssb.202500477</a>
  bibtex: '@article{As_Meier_Mahler_Meier_2026, title={X‐Ray Investigation of the
    Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001)
    Substrates}, volume={263}, DOI={<a href="https://doi.org/10.1002/pssb.202500477">10.1002/pssb.202500477</a>},
    number={2e202500477}, journal={physica status solidi (b)}, publisher={Wiley},
    author={As, Donat Josef and Meier, Falco and Mahler, Pascal and Meier, Cedrik},
    year={2026} }'
  chicago: As, Donat Josef, Falco Meier, Pascal Mahler, and Cedrik Meier. “X‐Ray Investigation
    of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si
    (001) Substrates.” <i>Physica Status Solidi (b)</i> 263, no. 2 (2026). <a href="https://doi.org/10.1002/pssb.202500477">https://doi.org/10.1002/pssb.202500477</a>.
  ieee: 'D. J. As, F. Meier, P. Mahler, and C. Meier, “X‐Ray Investigation of the
    Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001)
    Substrates,” <i>physica status solidi (b)</i>, vol. 263, no. 2, Art. no. e202500477,
    2026, doi: <a href="https://doi.org/10.1002/pssb.202500477">10.1002/pssb.202500477</a>.'
  mla: As, Donat Josef, et al. “X‐Ray Investigation of the Thermal Expansion Coefficient
    of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates.” <i>Physica Status
    Solidi (b)</i>, vol. 263, no. 2, e202500477, Wiley, 2026, doi:<a href="https://doi.org/10.1002/pssb.202500477">10.1002/pssb.202500477</a>.
  short: D.J. As, F. Meier, P. Mahler, C. Meier, Physica Status Solidi (b) 263 (2026).
date_created: 2026-06-01T09:22:04Z
date_updated: 2026-06-01T09:23:41Z
department:
- _id: '15'
doi: 10.1002/pssb.202500477
intvolume: '       263'
issue: '2'
language:
- iso: eng
publication: physica status solidi (b)
publication_identifier:
  issn:
  - 0370-1972
  - 1521-3951
publication_status: published
publisher: Wiley
status: public
title: X‐Ray Investigation of the Thermal Expansion Coefficient of Cubic Gallium Nitride
  on 3C‐SiC (001)/Si (001) Substrates
type: journal_article
user_id: '20798'
volume: 263
year: '2026'
...
---
_id: '65745'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>In this work,
    we address the numerical identification of entanglement in dynamical scenarios.
    To this end, we consider different programs based on the restriction of the evolution
    to the set of separable (i.e., non-entangled) states, together with the discretization
    of the space of variables for numerical computations. As a first approach, we
    apply linear splitting methods to the restricted, continuous equations of motion
    derived from variational principles. We utilize an exchange interaction Hamiltonian
    to confirm that the numerical and analytical solutions coincide in the limit of
    small time steps. The application to different Hamiltonians shows the wide applicability
    of the method to detect dynamical entanglement. To avoid the derivation of analytical
    solutions for complex dynamics, we consider variational, numerical integration
    schemes, introducing a variational discretization for Lagrangians linear in velocities.
    Here, we examine and compare two approaches: one in which the system is discretized
    before the restriction is applied, and another in which the restriction precedes
    the discretization. We find that the \"first-discretize-then-restrict\" method
    becomes numerically unstable, already for the example of an exchange-interaction
    Hamiltonian, which can be an important consideration for the numerical analysis
    of constrained quantum dynamics. Thereby, broadly applicable numerical tools,
    including their limitations, for studying entanglement over time are established
    for assessing the entangling power of processes that are used in quantum information
    theory.</jats:p>"
author:
- first_name: Christian
  full_name: Offen, Christian
  last_name: Offen
- first_name: Boris
  full_name: Wembe, Boris
  last_name: Wembe
- first_name: Laura
  full_name: Ares, Laura
  last_name: Ares
- first_name: Jan
  full_name: Sperling, Jan
  last_name: Sperling
- first_name: Sina
  full_name: Ober-Blöbaum, Sina
  last_name: Ober-Blöbaum
citation:
  ama: 'Offen C, Wembe B, Ares L, Sperling J, Ober-Blöbaum S. Numerical approaches
    to entangling dynamics from variational principles. <i>Journal of Physics A: Mathematical
    and Theoretical</i>. Published online 2026. doi:<a href="https://doi.org/10.1088/1751-8121/ae6d51">10.1088/1751-8121/ae6d51</a>'
  apa: 'Offen, C., Wembe, B., Ares, L., Sperling, J., &#38; Ober-Blöbaum, S. (2026).
    Numerical approaches to entangling dynamics from variational principles. <i>Journal
    of Physics A: Mathematical and Theoretical</i>. <a href="https://doi.org/10.1088/1751-8121/ae6d51">https://doi.org/10.1088/1751-8121/ae6d51</a>'
  bibtex: '@article{Offen_Wembe_Ares_Sperling_Ober-Blöbaum_2026, title={Numerical
    approaches to entangling dynamics from variational principles}, DOI={<a href="https://doi.org/10.1088/1751-8121/ae6d51">10.1088/1751-8121/ae6d51</a>},
    journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP Publishing},
    author={Offen, Christian and Wembe, Boris and Ares, Laura and Sperling, Jan and
    Ober-Blöbaum, Sina}, year={2026} }'
  chicago: 'Offen, Christian, Boris Wembe, Laura Ares, Jan Sperling, and Sina Ober-Blöbaum.
    “Numerical Approaches to Entangling Dynamics from Variational Principles.” <i>Journal
    of Physics A: Mathematical and Theoretical</i>, 2026. <a href="https://doi.org/10.1088/1751-8121/ae6d51">https://doi.org/10.1088/1751-8121/ae6d51</a>.'
  ieee: 'C. Offen, B. Wembe, L. Ares, J. Sperling, and S. Ober-Blöbaum, “Numerical
    approaches to entangling dynamics from variational principles,” <i>Journal of
    Physics A: Mathematical and Theoretical</i>, 2026, doi: <a href="https://doi.org/10.1088/1751-8121/ae6d51">10.1088/1751-8121/ae6d51</a>.'
  mla: 'Offen, Christian, et al. “Numerical Approaches to Entangling Dynamics from
    Variational Principles.” <i>Journal of Physics A: Mathematical and Theoretical</i>,
    IOP Publishing, 2026, doi:<a href="https://doi.org/10.1088/1751-8121/ae6d51">10.1088/1751-8121/ae6d51</a>.'
  short: 'C. Offen, B. Wembe, L. Ares, J. Sperling, S. Ober-Blöbaum, Journal of Physics
    A: Mathematical and Theoretical (2026).'
date_created: 2026-06-01T09:36:09Z
date_updated: 2026-06-01T09:36:17Z
department:
- _id: '94'
doi: 10.1088/1751-8121/ae6d51
language:
- iso: eng
publication: 'Journal of Physics A: Mathematical and Theoretical'
publication_identifier:
  issn:
  - 1751-8113
  - 1751-8121
publication_status: published
publisher: IOP Publishing
status: public
title: Numerical approaches to entangling dynamics from variational principles
type: journal_article
user_id: '95394'
year: '2026'
...
---
_id: '65742'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>In this work,
    we address the numerical identification of entanglement in dynamical scenarios.
    To this end, we consider different programs based on the restriction of the evolution
    to the set of separable (i.e., non-entangled) states, together with the discretization
    of the space of variables for numerical computations. As a first approach, we
    apply linear splitting methods to the restricted, continuous equations of motion
    derived from variational principles. We utilize an exchange interaction Hamiltonian
    to confirm that the numerical and analytical solutions coincide in the limit of
    small time steps. The application to different Hamiltonians shows the wide applicability
    of the method to detect dynamical entanglement. To avoid the derivation of analytical
    solutions for complex dynamics, we consider variational, numerical integration
    schemes, introducing a variational discretization for Lagrangians linear in velocities.
    Here, we examine and compare two approaches: one in which the system is discretized
    before the restriction is applied, and another in which the restriction precedes
    the discretization. We find that the \"first-discretize-then-restrict\" method
    becomes numerically unstable, already for the example of an exchange-interaction
    Hamiltonian, which can be an important consideration for the numerical analysis
    of constrained quantum dynamics. Thereby, broadly applicable numerical tools,
    including their limitations, for studying entanglement over time are established
    for assessing the entangling power of processes that are used in quantum information
    theory.</jats:p>"
author:
- first_name: Christian
  full_name: Offen, Christian
  last_name: Offen
- first_name: Boris
  full_name: Wembe, Boris
  last_name: Wembe
- first_name: Laura
  full_name: Ares, Laura
  last_name: Ares
- first_name: Jan
  full_name: Sperling, Jan
  last_name: Sperling
- first_name: Sina
  full_name: Ober-Blöbaum, Sina
  last_name: Ober-Blöbaum
citation:
  ama: 'Offen C, Wembe B, Ares L, Sperling J, Ober-Blöbaum S. Numerical approaches
    to entangling dynamics from variational principles. <i>Journal of Physics A: Mathematical
    and Theoretical</i>. Published online 2026. doi:<a href="https://doi.org/10.1088/1751-8121/ae6d51">10.1088/1751-8121/ae6d51</a>'
  apa: 'Offen, C., Wembe, B., Ares, L., Sperling, J., &#38; Ober-Blöbaum, S. (2026).
    Numerical approaches to entangling dynamics from variational principles. <i>Journal
    of Physics A: Mathematical and Theoretical</i>. <a href="https://doi.org/10.1088/1751-8121/ae6d51">https://doi.org/10.1088/1751-8121/ae6d51</a>'
  bibtex: '@article{Offen_Wembe_Ares_Sperling_Ober-Blöbaum_2026, title={Numerical
    approaches to entangling dynamics from variational principles}, DOI={<a href="https://doi.org/10.1088/1751-8121/ae6d51">10.1088/1751-8121/ae6d51</a>},
    journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP Publishing},
    author={Offen, Christian and Wembe, Boris and Ares, Laura and Sperling, Jan and
    Ober-Blöbaum, Sina}, year={2026} }'
  chicago: 'Offen, Christian, Boris Wembe, Laura Ares, Jan Sperling, and Sina Ober-Blöbaum.
    “Numerical Approaches to Entangling Dynamics from Variational Principles.” <i>Journal
    of Physics A: Mathematical and Theoretical</i>, 2026. <a href="https://doi.org/10.1088/1751-8121/ae6d51">https://doi.org/10.1088/1751-8121/ae6d51</a>.'
  ieee: 'C. Offen, B. Wembe, L. Ares, J. Sperling, and S. Ober-Blöbaum, “Numerical
    approaches to entangling dynamics from variational principles,” <i>Journal of
    Physics A: Mathematical and Theoretical</i>, 2026, doi: <a href="https://doi.org/10.1088/1751-8121/ae6d51">10.1088/1751-8121/ae6d51</a>.'
  mla: 'Offen, Christian, et al. “Numerical Approaches to Entangling Dynamics from
    Variational Principles.” <i>Journal of Physics A: Mathematical and Theoretical</i>,
    IOP Publishing, 2026, doi:<a href="https://doi.org/10.1088/1751-8121/ae6d51">10.1088/1751-8121/ae6d51</a>.'
  short: 'C. Offen, B. Wembe, L. Ares, J. Sperling, S. Ober-Blöbaum, Journal of Physics
    A: Mathematical and Theoretical (2026).'
date_created: 2026-06-01T09:29:01Z
date_updated: 2026-06-01T09:29:29Z
department:
- _id: '94'
doi: 10.1088/1751-8121/ae6d51
language:
- iso: eng
publication: 'Journal of Physics A: Mathematical and Theoretical'
publication_identifier:
  issn:
  - 1751-8113
  - 1751-8121
publication_status: published
publisher: IOP Publishing
status: public
title: Numerical approaches to entangling dynamics from variational principles
type: journal_article
user_id: '95394'
year: '2026'
...
---
_id: '65746'
abstract:
- lang: eng
  text: This paper presents a class of structure-preserving numerical methods for
    quantum optimal control problems, based on commutator-free Cayley integrators.
    Starting from the Krotov framework, we reformulate the forward and backward propagation
    steps using Cayley-type schemes that preserve unitarity and symmetry at the discrete
    level. This approach eliminates the need for matrix exponentials and commutators,
    leading to significant computational savings while maintaining higher-order accuracy.
    We first recall the standard linear setting and then extend the formulation to
    nonlinear Schrödinger and Gross-Pitaevskii equations using a Cayley-polynomial
    interpolation strategy. Numerical experiments on state-transfer problems illustrate
    that the CF-Cayley method achieves the same accuracy as high-order exponential
    or Cayley-Magnus schemes at substantially lower cost, especially for longtime
    or highly oscillatory dynamics. In the nonlinear regime, the structure-preserving
    properties of the method ensure stability and norm conservation, making it a robust
    tool for large-scale quantum control simulations. The proposed framework thus
    bridges geometric integration and optimal control, offering an efficient and reliable
    alternative to existing exponential-based propagators.
author:
- first_name: Boris Edgar
  full_name: Wembe Moafo, Boris Edgar
  id: '95394'
  last_name: Wembe Moafo
  orcid: 0000-0002-6085-8071
- first_name: Usman
  full_name: Ali, Usman
  last_name: Ali
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Sina
  full_name: Ober-Blöbaum, Sina
  id: '16494'
  last_name: Ober-Blöbaum
citation:
  ama: 'Wembe Moafo BE, Ali U, Meier T, Ober-Blöbaum S. Cayley Commutator-free Methods
    for Krotov-Type Algorithms in Quantum Optimal Control. In: ; 2026. doi:<a href="https://doi.org/10.48550/ARXIV.2603.11697">10.48550/ARXIV.2603.11697</a>'
  apa: Wembe Moafo, B. E., Ali, U., Meier, T., &#38; Ober-Blöbaum, S. (2026). <i>Cayley
    Commutator-free Methods for Krotov-Type Algorithms in Quantum Optimal Control</i>.
    European Control Conference, Reykjavík, Iceland. <a href="https://doi.org/10.48550/ARXIV.2603.11697">https://doi.org/10.48550/ARXIV.2603.11697</a>
  bibtex: '@inproceedings{Wembe Moafo_Ali_Meier_Ober-Blöbaum_2026, title={Cayley Commutator-free
    Methods for Krotov-Type Algorithms in Quantum Optimal Control}, DOI={<a href="https://doi.org/10.48550/ARXIV.2603.11697">10.48550/ARXIV.2603.11697</a>},
    author={Wembe Moafo, Boris Edgar and Ali, Usman and Meier, Torsten and Ober-Blöbaum,
    Sina}, year={2026} }'
  chicago: Wembe Moafo, Boris Edgar, Usman Ali, Torsten Meier, and Sina Ober-Blöbaum.
    “Cayley Commutator-Free Methods for Krotov-Type Algorithms in Quantum Optimal
    Control,” 2026. <a href="https://doi.org/10.48550/ARXIV.2603.11697">https://doi.org/10.48550/ARXIV.2603.11697</a>.
  ieee: 'B. E. Wembe Moafo, U. Ali, T. Meier, and S. Ober-Blöbaum, “Cayley Commutator-free
    Methods for Krotov-Type Algorithms in Quantum Optimal Control,” presented at the
    European Control Conference, Reykjavík, Iceland, 2026, doi: <a href="https://doi.org/10.48550/ARXIV.2603.11697">10.48550/ARXIV.2603.11697</a>.'
  mla: Wembe Moafo, Boris Edgar, et al. <i>Cayley Commutator-Free Methods for Krotov-Type
    Algorithms in Quantum Optimal Control</i>. 2026, doi:<a href="https://doi.org/10.48550/ARXIV.2603.11697">10.48550/ARXIV.2603.11697</a>.
  short: 'B.E. Wembe Moafo, U. Ali, T. Meier, S. Ober-Blöbaum, in: 2026.'
conference:
  end_date: 2026-07-10
  location: Reykjavík, Iceland
  name: European Control Conference
  start_date: 2026-07-07
date_created: 2026-06-01T09:38:06Z
date_updated: 2026-06-01T09:40:38Z
department:
- _id: '94'
doi: 10.48550/ARXIV.2603.11697
language:
- iso: eng
status: public
title: Cayley Commutator-free Methods for Krotov-Type Algorithms in Quantum Optimal
  Control
type: conference
user_id: '95394'
year: '2026'
...
---
_id: '65702'
author:
- first_name: Heiko
  full_name: Meier, Heiko
  id: '21765'
  last_name: Meier
- first_name: Robert
  full_name: Peper, Robert
  last_name: Peper
- first_name: Marc
  full_name: Kukuk, Marc
  id: '290'
  last_name: Kukuk
- first_name: Lars
  full_name: Riedl, Lars
  id: '31513'
  last_name: Riedl
citation:
  ama: 'Meier H, Peper R, Kukuk M, Riedl L. Netzwerkanalysen als Bestandteil der Partizipativen
    Sportentwicklungsplanung. In: Meier H, Kukuk M, Sennefelder L, eds. <i>Planen.
    Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“
    vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>. Vol Band 305. Schriften
    der Deutschen Vereinigung für Sportwissenschaft. Feldhaus; 2026:107-121.'
  apa: 'Meier, H., Peper, R., Kukuk, M., &#38; Riedl, L. (2026). Netzwerkanalysen
    als Bestandteil der Partizipativen Sportentwicklungsplanung. In H. Meier, M. Kukuk,
    &#38; L. Sennefelder (Eds.), <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung
    der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn:
    Vol. Band 305</i> (pp. 107–121). Feldhaus.'
  bibtex: '@inbook{Meier_Peper_Kukuk_Riedl_2026, series={Schriften der Deutschen Vereinigung
    für Sportwissenschaft}, title={Netzwerkanalysen als Bestandteil der Partizipativen
    Sportentwicklungsplanung}, volume={Band 305}, booktitle={Planen. Beteiligen. Bauen.
    Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024
    in Bad Driburg &#38; Paderborn}, publisher={Feldhaus}, author={Meier, Heiko and
    Peper, Robert and Kukuk, Marc and Riedl, Lars}, editor={Meier, Heiko and Kukuk,
    Marc and Sennefelder, Lisa}, year={2026}, pages={107–121}, collection={Schriften
    der Deutschen Vereinigung für Sportwissenschaft} }'
  chicago: Meier, Heiko, Robert Peper, Marc Kukuk, and Lars Riedl. “Netzwerkanalysen
    als Bestandteil der Partizipativen Sportentwicklungsplanung.” In <i>Planen. Beteiligen.
    Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024
    in Bad Driburg &#38; Paderborn</i>, edited by Heiko Meier, Marc Kukuk, and Lisa
    Sennefelder, Band 305:107–21. Schriften der Deutschen Vereinigung für Sportwissenschaft.
    Feldhaus, 2026.
  ieee: H. Meier, R. Peper, M. Kukuk, and L. Riedl, “Netzwerkanalysen als Bestandteil
    der Partizipativen Sportentwicklungsplanung,” in <i>Planen. Beteiligen. Bauen.
    Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024
    in Bad Driburg &#38; Paderborn</i>, vol. Band 305, H. Meier, M. Kukuk, and L.
    Sennefelder, Eds. Feldhaus, 2026, pp. 107–121.
  mla: Meier, Heiko, et al. “Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung.”
    <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport
    und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>, edited by Heiko
    Meier et al., vol. Band 305, Feldhaus, 2026, pp. 107–21.
  short: 'H. Meier, R. Peper, M. Kukuk, L. Riedl, in: H. Meier, M. Kukuk, L. Sennefelder
    (Eds.), Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission
    „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn, Feldhaus,
    2026, pp. 107–121.'
date_created: 2026-05-27T14:32:38Z
date_updated: 2026-06-01T08:43:47Z
department:
- _id: '175'
editor:
- first_name: Heiko
  full_name: Meier, Heiko
  last_name: Meier
- first_name: Marc
  full_name: Kukuk, Marc
  last_name: Kukuk
- first_name: Lisa
  full_name: Sennefelder, Lisa
  last_name: Sennefelder
language:
- iso: ger
page: 107-121
publication: Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission
  „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg & Paderborn
publication_identifier:
  unknown:
  - '9783880207301'
publication_status: published
publisher: Feldhaus
series_title: Schriften der Deutschen Vereinigung für Sportwissenschaft
status: public
title: Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung
type: book_chapter
user_id: '290'
volume: Band 305
year: '2026'
...
---
_id: '65744'
abstract:
- lang: eng
  text: 'Optimal control problems with symmetries often admit a non stationary turnpike
    property called trim turnpike, which characterizes the convergence of optimal
    solutions to certain symmetry induced trajectories called trim primitives. In
    this paper we establish an exponential trim turnpike property for a class of optimal
    control problems with structural properties related to Abelian Lie group symmetries.
    The key ingredient of our approach is the introduction of an appropriate reduced
    optimal control problem. We show that extremals of the original problem can be
    characterized through a reduced Hamiltonian boundary value problem that coincides
    with the optimality system of the reduced problem. Under a hyperbolicity assumption
    on the equilibrium of the corresponding reduced Hamiltonian system we prove that
    optimal trajectories remain exponentially close, up to boundary layers near the
    endpoints, to a trim primitive defined by the static reduced problem. The theoretical
    results are illustrated on three representative examples: linear and nonlinear
    problems with quadratic cost and the Kepler orbital transfer problem.'
author:
- first_name: Sofya
  full_name: Maslovskaya, Sofya
  id: '87909'
  last_name: Maslovskaya
- first_name: Sina
  full_name: Ober-Blöbaum, Sina
  id: '16494'
  last_name: Ober-Blöbaum
- first_name: Boris Edgar
  full_name: Wembe Moafo, Boris Edgar
  id: '95394'
  last_name: Wembe Moafo
  orcid: 0000-0002-6085-8071
citation:
  ama: Maslovskaya S, Ober-Blöbaum S, Wembe Moafo BE. Non static exponential turnpike
    property for optimal control problems with symmetries and boundary conditions.
  apa: Maslovskaya, S., Ober-Blöbaum, S., &#38; Wembe Moafo, B. E. (n.d.). <i>Non
    static exponential turnpike property for optimal control problems with symmetries
    and boundary conditions</i>.
  bibtex: '@article{Maslovskaya_Ober-Blöbaum_Wembe Moafo, title={Non static exponential
    turnpike property for optimal control problems with symmetries and boundary conditions},
    author={Maslovskaya, Sofya and Ober-Blöbaum, Sina and Wembe Moafo, Boris Edgar}
    }'
  chicago: Maslovskaya, Sofya, Sina Ober-Blöbaum, and Boris Edgar Wembe Moafo. “Non
    Static Exponential Turnpike Property for Optimal Control Problems with Symmetries
    and Boundary Conditions,” n.d.
  ieee: S. Maslovskaya, S. Ober-Blöbaum, and B. E. Wembe Moafo, “Non static exponential
    turnpike property for optimal control problems with symmetries and boundary conditions.”
    .
  mla: Maslovskaya, Sofya, et al. <i>Non Static Exponential Turnpike Property for
    Optimal Control Problems with Symmetries and Boundary Conditions</i>.
  short: S. Maslovskaya, S. Ober-Blöbaum, B.E. Wembe Moafo, (n.d.).
date_created: 2026-06-01T09:31:15Z
date_updated: 2026-06-01T09:35:13Z
department:
- _id: '94'
language:
- iso: eng
publication_status: submitted
status: public
title: Non static exponential turnpike property for optimal control problems with
  symmetries and boundary conditions
type: preprint
user_id: '95394'
year: '2026'
...
