---
_id: '63588'
author:
- first_name: Klas
  full_name: Modin, Klas
  last_name: Modin
- first_name: Ali
  full_name: Suri, Ali
  id: '89268'
  last_name: Suri
  orcid: https://orcid.org/0000-0002-9682-9037
citation:
  ama: Modin K, Suri A. Geodesic interpretation of the global quasi-geostrophic equations.
    <i>Calculus of Variations and Partial Differential Equations </i>. 2026;65. doi:<a
    href="https://doi.org/10.1007/s00526-025-03186-0">https://doi.org/10.1007/s00526-025-03186-0</a>
  apa: Modin, K., &#38; Suri, A. (2026). Geodesic interpretation of the global quasi-geostrophic
    equations. <i>Calculus of Variations and Partial Differential Equations </i>,
    <i>65</i>. <a href="https://doi.org/10.1007/s00526-025-03186-0">https://doi.org/10.1007/s00526-025-03186-0</a>
  bibtex: '@article{Modin_Suri_2026, title={Geodesic interpretation of the global
    quasi-geostrophic equations}, volume={65}, DOI={<a href="https://doi.org/10.1007/s00526-025-03186-0">https://doi.org/10.1007/s00526-025-03186-0</a>},
    journal={Calculus of Variations and Partial Differential Equations }, author={Modin,
    Klas and Suri, Ali}, year={2026} }'
  chicago: Modin, Klas, and Ali Suri. “Geodesic Interpretation of the Global Quasi-Geostrophic
    Equations.” <i>Calculus of Variations and Partial Differential Equations </i>
    65 (2026). <a href="https://doi.org/10.1007/s00526-025-03186-0">https://doi.org/10.1007/s00526-025-03186-0</a>.
  ieee: 'K. Modin and A. Suri, “Geodesic interpretation of the global quasi-geostrophic
    equations,” <i>Calculus of Variations and Partial Differential Equations </i>,
    vol. 65, 2026, doi: <a href="https://doi.org/10.1007/s00526-025-03186-0">https://doi.org/10.1007/s00526-025-03186-0</a>.'
  mla: Modin, Klas, and Ali Suri. “Geodesic Interpretation of the Global Quasi-Geostrophic
    Equations.” <i>Calculus of Variations and Partial Differential Equations </i>,
    vol. 65, 2026, doi:<a href="https://doi.org/10.1007/s00526-025-03186-0">https://doi.org/10.1007/s00526-025-03186-0</a>.
  short: K. Modin, A. Suri, Calculus of Variations and Partial Differential Equations  65
    (2026).
date_created: 2026-01-13T10:38:42Z
date_updated: 2026-01-13T10:54:15Z
department:
- _id: '10'
- _id: '87'
- _id: '93'
doi: https://doi.org/10.1007/s00526-025-03186-0
intvolume: '        65'
language:
- iso: eng
publication: 'Calculus of Variations and Partial Differential Equations '
status: public
title: Geodesic interpretation of the global quasi-geostrophic equations
type: journal_article
user_id: '89268'
volume: 65
year: '2026'
...
---
_id: '63621'
author:
- first_name: Tobias
  full_name: Black, Tobias
  id: '23686'
  last_name: Black
  orcid: 0000-0001-9963-0800
citation:
  ama: Black T. Refining Hölder regularity theory in degenerate drift-diffusion equations.
    <i>Annali di Matematica Pura ed Applicata (1923 -)</i>. Published online 2026.
    doi:<a href="https://doi.org/10.1007/s10231-025-01642-4">10.1007/s10231-025-01642-4</a>
  apa: Black, T. (2026). Refining Hölder regularity theory in degenerate drift-diffusion
    equations. <i>Annali Di Matematica Pura Ed Applicata (1923 -)</i>. <a href="https://doi.org/10.1007/s10231-025-01642-4">https://doi.org/10.1007/s10231-025-01642-4</a>
  bibtex: '@article{Black_2026, title={Refining Hölder regularity theory in degenerate
    drift-diffusion equations}, DOI={<a href="https://doi.org/10.1007/s10231-025-01642-4">10.1007/s10231-025-01642-4</a>},
    journal={Annali di Matematica Pura ed Applicata (1923 -)}, publisher={Springer
    Science and Business Media LLC}, author={Black, Tobias}, year={2026} }'
  chicago: Black, Tobias. “Refining Hölder Regularity Theory in Degenerate Drift-Diffusion
    Equations.” <i>Annali Di Matematica Pura Ed Applicata (1923 -)</i>, 2026. <a href="https://doi.org/10.1007/s10231-025-01642-4">https://doi.org/10.1007/s10231-025-01642-4</a>.
  ieee: 'T. Black, “Refining Hölder regularity theory in degenerate drift-diffusion
    equations,” <i>Annali di Matematica Pura ed Applicata (1923 -)</i>, 2026, doi:
    <a href="https://doi.org/10.1007/s10231-025-01642-4">10.1007/s10231-025-01642-4</a>.'
  mla: Black, Tobias. “Refining Hölder Regularity Theory in Degenerate Drift-Diffusion
    Equations.” <i>Annali Di Matematica Pura Ed Applicata (1923 -)</i>, Springer Science
    and Business Media LLC, 2026, doi:<a href="https://doi.org/10.1007/s10231-025-01642-4">10.1007/s10231-025-01642-4</a>.
  short: T. Black, Annali Di Matematica Pura Ed Applicata (1923 -) (2026).
date_created: 2026-01-15T10:09:43Z
date_updated: 2026-01-15T10:10:58Z
department:
- _id: '34'
- _id: '10'
- _id: '90'
doi: 10.1007/s10231-025-01642-4
language:
- iso: eng
publication: Annali di Matematica Pura ed Applicata (1923 -)
publication_identifier:
  issn:
  - 0373-3114
  - 1618-1891
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Refining Hölder regularity theory in degenerate drift-diffusion equations
type: journal_article
user_id: '23686'
year: '2026'
...
---
_id: '63656'
article_number: '012220'
article_type: original
author:
- first_name: Laura
  full_name: Ares, Laura
  last_name: Ares
- first_name: Julien
  full_name: Pinske, Julien
  last_name: Pinske
- first_name: Benjamin
  full_name: Hinrichs, Benjamin
  id: '99427'
  last_name: Hinrichs
  orcid: 0000-0001-9074-1205
- first_name: Martin
  full_name: Kolb, Martin
  id: '48880'
  last_name: Kolb
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
citation:
  ama: Ares L, Pinske J, Hinrichs B, Kolb M, Sperling J. Restricted Monte Carlo wave-function
    method and Lindblad equation for identifying entangling open-quantum-system dynamics.
    <i>Physical Review A</i>. 2026;113(1). doi:<a href="https://doi.org/10.1103/hcj7-8zlg">10.1103/hcj7-8zlg</a>
  apa: Ares, L., Pinske, J., Hinrichs, B., Kolb, M., &#38; Sperling, J. (2026). Restricted
    Monte Carlo wave-function method and Lindblad equation for identifying entangling
    open-quantum-system dynamics. <i>Physical Review A</i>, <i>113</i>(1), Article
    012220. <a href="https://doi.org/10.1103/hcj7-8zlg">https://doi.org/10.1103/hcj7-8zlg</a>
  bibtex: '@article{Ares_Pinske_Hinrichs_Kolb_Sperling_2026, title={Restricted Monte
    Carlo wave-function method and Lindblad equation for identifying entangling open-quantum-system
    dynamics}, volume={113}, DOI={<a href="https://doi.org/10.1103/hcj7-8zlg">10.1103/hcj7-8zlg</a>},
    number={1012220}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Ares, Laura and Pinske, Julien and Hinrichs, Benjamin and Kolb,
    Martin and Sperling, Jan}, year={2026} }'
  chicago: Ares, Laura, Julien Pinske, Benjamin Hinrichs, Martin Kolb, and Jan Sperling.
    “Restricted Monte Carlo Wave-Function Method and Lindblad Equation for Identifying
    Entangling Open-Quantum-System Dynamics.” <i>Physical Review A</i> 113, no. 1
    (2026). <a href="https://doi.org/10.1103/hcj7-8zlg">https://doi.org/10.1103/hcj7-8zlg</a>.
  ieee: 'L. Ares, J. Pinske, B. Hinrichs, M. Kolb, and J. Sperling, “Restricted Monte
    Carlo wave-function method and Lindblad equation for identifying entangling open-quantum-system
    dynamics,” <i>Physical Review A</i>, vol. 113, no. 1, Art. no. 012220, 2026, doi:
    <a href="https://doi.org/10.1103/hcj7-8zlg">10.1103/hcj7-8zlg</a>.'
  mla: Ares, Laura, et al. “Restricted Monte Carlo Wave-Function Method and Lindblad
    Equation for Identifying Entangling Open-Quantum-System Dynamics.” <i>Physical
    Review A</i>, vol. 113, no. 1, 012220, American Physical Society (APS), 2026,
    doi:<a href="https://doi.org/10.1103/hcj7-8zlg">10.1103/hcj7-8zlg</a>.
  short: L. Ares, J. Pinske, B. Hinrichs, M. Kolb, J. Sperling, Physical Review A
    113 (2026).
date_created: 2026-01-18T18:08:18Z
date_updated: 2026-01-18T18:15:01Z
department:
- _id: '799'
doi: 10.1103/hcj7-8zlg
external_id:
  arxiv:
  - '2412.08735'
intvolume: '       113'
issue: '1'
language:
- iso: eng
project:
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
- _id: '174'
  name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
    Systemen: Eine theoretische Analyse'
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Restricted Monte Carlo wave-function method and Lindblad equation for identifying
  entangling open-quantum-system dynamics
type: journal_article
user_id: '99427'
volume: 113
year: '2026'
...
---
_id: '63657'
article_number: L010403
article_type: letter_note
author:
- first_name: Julien
  full_name: Pinske, Julien
  last_name: Pinske
- first_name: Laura
  full_name: Ares, Laura
  last_name: Ares
- first_name: Benjamin
  full_name: Hinrichs, Benjamin
  id: '99427'
  last_name: Hinrichs
  orcid: 0000-0001-9074-1205
- first_name: Martin
  full_name: Kolb, Martin
  id: '48880'
  last_name: Kolb
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
citation:
  ama: Pinske J, Ares L, Hinrichs B, Kolb M, Sperling J. Separability Lindblad equation for
    dynamical open-system entanglement. <i>Physical Review A</i>. 2026;113(1). doi:<a
    href="https://doi.org/10.1103/kd3b-bfxq">10.1103/kd3b-bfxq</a>
  apa: Pinske, J., Ares, L., Hinrichs, B., Kolb, M., &#38; Sperling, J. (2026). Separability
    Lindblad equation for dynamical open-system entanglement. <i>Physical Review A</i>,
    <i>113</i>(1), Article L010403. <a href="https://doi.org/10.1103/kd3b-bfxq">https://doi.org/10.1103/kd3b-bfxq</a>
  bibtex: '@article{Pinske_Ares_Hinrichs_Kolb_Sperling_2026, title={Separability Lindblad
    equation for dynamical open-system entanglement}, volume={113}, DOI={<a href="https://doi.org/10.1103/kd3b-bfxq">10.1103/kd3b-bfxq</a>},
    number={1L010403}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Pinske, Julien and Ares, Laura and Hinrichs, Benjamin and Kolb,
    Martin and Sperling, Jan}, year={2026} }'
  chicago: Pinske, Julien, Laura Ares, Benjamin Hinrichs, Martin Kolb, and Jan Sperling.
    “Separability Lindblad Equation for Dynamical Open-System Entanglement.” <i>Physical
    Review A</i> 113, no. 1 (2026). <a href="https://doi.org/10.1103/kd3b-bfxq">https://doi.org/10.1103/kd3b-bfxq</a>.
  ieee: 'J. Pinske, L. Ares, B. Hinrichs, M. Kolb, and J. Sperling, “Separability
    Lindblad equation for dynamical open-system entanglement,” <i>Physical Review
    A</i>, vol. 113, no. 1, Art. no. L010403, 2026, doi: <a href="https://doi.org/10.1103/kd3b-bfxq">10.1103/kd3b-bfxq</a>.'
  mla: Pinske, Julien, et al. “Separability Lindblad Equation for Dynamical Open-System
    Entanglement.” <i>Physical Review A</i>, vol. 113, no. 1, L010403, American Physical
    Society (APS), 2026, doi:<a href="https://doi.org/10.1103/kd3b-bfxq">10.1103/kd3b-bfxq</a>.
  short: J. Pinske, L. Ares, B. Hinrichs, M. Kolb, J. Sperling, Physical Review A
    113 (2026).
date_created: 2026-01-18T18:11:27Z
date_updated: 2026-01-18T18:15:26Z
department:
- _id: '799'
doi: 10.1103/kd3b-bfxq
external_id:
  arxiv:
  - '2412.08724'
intvolume: '       113'
issue: '1'
language:
- iso: eng
project:
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
- _id: '174'
  name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
    Systemen: Eine theoretische Analyse'
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Separability Lindblad equation for dynamical open-system entanglement
type: journal_article
user_id: '99427'
volume: 113
year: '2026'
...
---
_id: '63672'
article_number: '24'
author:
- first_name: Tobias
  full_name: Black, Tobias
  id: '23686'
  last_name: Black
  orcid: 0000-0001-9963-0800
- first_name: Shohei
  full_name: Kohatsu, Shohei
  last_name: Kohatsu
- first_name: Duan
  full_name: Wu, Duan
  last_name: Wu
citation:
  ama: Black T, Kohatsu S, Wu D. Global solvability and large-time behavior in a doubly
    degenerate migration model involving saturated signal consumption. <i>Journal
    of Evolution Equations</i>. 2026;26(1). doi:<a href="https://doi.org/10.1007/s00028-025-01163-w">10.1007/s00028-025-01163-w</a>
  apa: Black, T., Kohatsu, S., &#38; Wu, D. (2026). Global solvability and large-time
    behavior in a doubly degenerate migration model involving saturated signal consumption.
    <i>Journal of Evolution Equations</i>, <i>26</i>(1), Article 24. <a href="https://doi.org/10.1007/s00028-025-01163-w">https://doi.org/10.1007/s00028-025-01163-w</a>
  bibtex: '@article{Black_Kohatsu_Wu_2026, title={Global solvability and large-time
    behavior in a doubly degenerate migration model involving saturated signal consumption},
    volume={26}, DOI={<a href="https://doi.org/10.1007/s00028-025-01163-w">10.1007/s00028-025-01163-w</a>},
    number={124}, journal={Journal of Evolution Equations}, publisher={Springer Science
    and Business Media LLC}, author={Black, Tobias and Kohatsu, Shohei and Wu, Duan},
    year={2026} }'
  chicago: Black, Tobias, Shohei Kohatsu, and Duan Wu. “Global Solvability and Large-Time
    Behavior in a Doubly Degenerate Migration Model Involving Saturated Signal Consumption.”
    <i>Journal of Evolution Equations</i> 26, no. 1 (2026). <a href="https://doi.org/10.1007/s00028-025-01163-w">https://doi.org/10.1007/s00028-025-01163-w</a>.
  ieee: 'T. Black, S. Kohatsu, and D. Wu, “Global solvability and large-time behavior
    in a doubly degenerate migration model involving saturated signal consumption,”
    <i>Journal of Evolution Equations</i>, vol. 26, no. 1, Art. no. 24, 2026, doi:
    <a href="https://doi.org/10.1007/s00028-025-01163-w">10.1007/s00028-025-01163-w</a>.'
  mla: Black, Tobias, et al. “Global Solvability and Large-Time Behavior in a Doubly
    Degenerate Migration Model Involving Saturated Signal Consumption.” <i>Journal
    of Evolution Equations</i>, vol. 26, no. 1, 24, Springer Science and Business
    Media LLC, 2026, doi:<a href="https://doi.org/10.1007/s00028-025-01163-w">10.1007/s00028-025-01163-w</a>.
  short: T. Black, S. Kohatsu, D. Wu, Journal of Evolution Equations 26 (2026).
date_created: 2026-01-20T14:13:53Z
date_updated: 2026-01-20T14:14:50Z
department:
- _id: '34'
- _id: '10'
- _id: '90'
doi: 10.1007/s00028-025-01163-w
intvolume: '        26'
issue: '1'
language:
- iso: eng
publication: Journal of Evolution Equations
publication_identifier:
  issn:
  - 1424-3199
  - 1424-3202
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Global solvability and large-time behavior in a doubly degenerate migration
  model involving saturated signal consumption
type: journal_article
user_id: '23686'
volume: 26
year: '2026'
...
---
_id: '64174'
author:
- first_name: Uta
  full_name: Häsel-Weide, Uta
  id: '60267'
  last_name: Häsel-Weide
  orcid: 0000-0001-6278-4240
- first_name: Marcus
  full_name: Nührenbörger, Marcus
  last_name: Nührenbörger
citation:
  ama: Häsel-Weide U, Nührenbörger M. Mathematische Basiskompetenzen. Diagnose und
    Förderung in der Grundschule. <i>Grundschule aktuell</i>. 2026;(173):3-6.
  apa: Häsel-Weide, U., &#38; Nührenbörger, M. (2026). Mathematische Basiskompetenzen.
    Diagnose und Förderung in der Grundschule. <i>Grundschule aktuell</i>, <i>173</i>,
    3–6.
  bibtex: '@article{Häsel-Weide_Nührenbörger_2026, title={Mathematische Basiskompetenzen.
    Diagnose und Förderung in der Grundschule.}, number={173}, journal={Grundschule
    aktuell}, author={Häsel-Weide, Uta and Nührenbörger, Marcus}, year={2026}, pages={3–6}
    }'
  chicago: 'Häsel-Weide, Uta, and Marcus Nührenbörger. “Mathematische Basiskompetenzen.
    Diagnose und Förderung in der Grundschule.” <i>Grundschule aktuell</i>, no. 173
    (2026): 3–6.'
  ieee: U. Häsel-Weide and M. Nührenbörger, “Mathematische Basiskompetenzen. Diagnose
    und Förderung in der Grundschule.,” <i>Grundschule aktuell</i>, no. 173, pp. 3–6,
    2026.
  mla: Häsel-Weide, Uta, and Marcus Nührenbörger. “Mathematische Basiskompetenzen.
    Diagnose und Förderung in der Grundschule.” <i>Grundschule aktuell</i>, no. 173,
    2026, pp. 3–6.
  short: U. Häsel-Weide, M. Nührenbörger, Grundschule aktuell (2026) 3–6.
date_created: 2026-02-16T12:13:02Z
date_updated: 2026-02-16T12:16:39Z
department:
- _id: '543'
issue: '173'
language:
- iso: ger
page: 3-6
publication: Grundschule aktuell
status: public
title: Mathematische Basiskompetenzen. Diagnose und Förderung in der Grundschule.
type: journal_article
user_id: '44184'
year: '2026'
...
---
_id: '51204'
abstract:
- lang: eng
  text: "Given a real semisimple connected Lie group $G$ and a discrete torsion-free\r\nsubgroup
    $\\Gamma < G$ we prove a precise connection between growth rates of the\r\ngroup
    $\\Gamma$, polyhedral bounds on the joint spectrum of the ring of\r\ninvariant
    differential operators, and the decay of matrix coefficients. In\r\nparticular,
    this allows us to completely characterize temperedness of\r\n$L^2(\\Gamma\\backslash
    G)$ in this general setting."
author:
- first_name: Christopher
  full_name: Lutsko, Christopher
  last_name: Lutsko
- first_name: Tobias
  full_name: Weich, Tobias
  id: '49178'
  last_name: Weich
  orcid: 0000-0002-9648-6919
- first_name: Lasse Lennart
  full_name: Wolf, Lasse Lennart
  id: '45027'
  last_name: Wolf
  orcid: 0000-0001-8893-2045
citation:
  ama: Lutsko C, Weich T, Wolf LL. Polyhedral bounds on the joint spectrum and temperedness
    of locally  symmetric spaces. <i>Duke Math Journal </i>. 2026;(to appear).
  apa: Lutsko, C., Weich, T., &#38; Wolf, L. L. (2026). Polyhedral bounds on the joint
    spectrum and temperedness of locally  symmetric spaces. <i>Duke Math. Journal
    </i>, <i>(to appear)</i>.
  bibtex: '@article{Lutsko_Weich_Wolf_2026, title={Polyhedral bounds on the joint
    spectrum and temperedness of locally  symmetric spaces}, volume={(to appear)},
    journal={Duke Math. Journal }, author={Lutsko, Christopher and Weich, Tobias and
    Wolf, Lasse Lennart}, year={2026} }'
  chicago: Lutsko, Christopher, Tobias Weich, and Lasse Lennart Wolf. “Polyhedral
    Bounds on the Joint Spectrum and Temperedness of Locally  Symmetric Spaces.” <i>Duke
    Math. Journal </i> (to appear) (2026).
  ieee: C. Lutsko, T. Weich, and L. L. Wolf, “Polyhedral bounds on the joint spectrum
    and temperedness of locally  symmetric spaces,” <i>Duke Math. Journal </i>, vol.
    (to appear), 2026.
  mla: Lutsko, Christopher, et al. “Polyhedral Bounds on the Joint Spectrum and Temperedness
    of Locally  Symmetric Spaces.” <i>Duke Math. Journal </i>, vol. (to appear), 2026.
  short: C. Lutsko, T. Weich, L.L. Wolf, Duke Math. Journal  (to appear) (2026).
date_created: 2024-02-06T20:35:36Z
date_updated: 2026-02-18T10:37:47Z
department:
- _id: '10'
- _id: '623'
- _id: '548'
external_id:
  arxiv:
  - '2402.02530'
language:
- iso: eng
publication: 'Duke Math. Journal '
status: public
title: Polyhedral bounds on the joint spectrum and temperedness of locally  symmetric
  spaces
type: journal_article
user_id: '49178'
volume: (to appear)
year: '2026'
...
---
_id: '64211'
author:
- first_name: Vivien
  full_name: Wiebe, Vivien
  last_name: Wiebe
- first_name: Uta
  full_name: Häsel-Weide, Uta
  id: '60267'
  last_name: Häsel-Weide
  orcid: 0000-0001-6278-4240
citation:
  ama: 'Wiebe V, Häsel-Weide U.  Initiating and establishing mathematical practices
    of determining and transforming numbers as a foundational skill in fostering mathematics
    teaching. In: Mosvold R, Fauskanger J, Ferretti F, Vondrová N, Charles University,
    Faculty of Education and ERME, eds. <i>Proceedings of the Nineteenth ERME Topic
    Conference: Connecting the Learning of Mathematics Teaching to Practice</i>. ;
    2026:122-129.'
  apa: 'Wiebe, V., &#38; Häsel-Weide, U. (2026).  Initiating and establishing mathematical
    practices of determining and transforming numbers as a foundational skill in fostering
    mathematics teaching. In R. Mosvold, J. Fauskanger, F. Ferretti, N. Vondrová,
    &#38; Charles University, Faculty of Education and ERME (Eds.), <i>Proceedings
    of the Nineteenth ERME Topic Conference: Connecting the Learning of Mathematics
    Teaching to Practice</i> (pp. 122–129).'
  bibtex: '@inproceedings{Wiebe_Häsel-Weide_2026, place={Prag}, title={ Initiating
    and establishing mathematical practices of determining and transforming numbers
    as a foundational skill in fostering mathematics teaching}, booktitle={Proceedings
    of the Nineteenth ERME Topic Conference: Connecting the Learning of Mathematics
    Teaching to Practice}, author={Wiebe, Vivien and Häsel-Weide, Uta}, editor={Mosvold,
    R. and Fauskanger, J. and Ferretti, F. and Vondrová, N. and Charles University,
    Faculty of Education and ERME}, year={2026}, pages={122–129} }'
  chicago: 'Wiebe, Vivien, and Uta Häsel-Weide. “ Initiating and Establishing Mathematical
    Practices of Determining and Transforming Numbers as a Foundational Skill in Fostering
    Mathematics Teaching.” In <i>Proceedings of the Nineteenth ERME Topic Conference:
    Connecting the Learning of Mathematics Teaching to Practice</i>, edited by R.
    Mosvold, J. Fauskanger, F. Ferretti, N. Vondrová, and Charles University, Faculty
    of Education and ERME, 122–29. Prag, 2026.'
  ieee: 'V. Wiebe and U. Häsel-Weide, “ Initiating and establishing mathematical practices
    of determining and transforming numbers as a foundational skill in fostering mathematics
    teaching,” in <i>Proceedings of the Nineteenth ERME Topic Conference: Connecting
    the Learning of Mathematics Teaching to Practice</i>, Prag, 2026, pp. 122–129.'
  mla: 'Wiebe, Vivien, and Uta Häsel-Weide. “ Initiating and Establishing Mathematical
    Practices of Determining and Transforming Numbers as a Foundational Skill in Fostering
    Mathematics Teaching.” <i>Proceedings of the Nineteenth ERME Topic Conference:
    Connecting the Learning of Mathematics Teaching to Practice</i>, edited by R.
    Mosvold et al., 2026, pp. 122–29.'
  short: 'V. Wiebe, U. Häsel-Weide, in: R. Mosvold, J. Fauskanger, F. Ferretti, N.
    Vondrová, Charles University, Faculty of Education and ERME (Eds.), Proceedings
    of the Nineteenth ERME Topic Conference: Connecting the Learning of Mathematics
    Teaching to Practice, Prag, 2026, pp. 122–129.'
conference:
  location: Prag
  name: Nineteenth ERME Topic Conference
corporate_editor:
- Charles University, Faculty of Education and ERME
date_created: 2026-02-18T10:41:23Z
date_updated: 2026-02-18T11:00:16Z
department:
- _id: '543'
editor:
- first_name: R.
  full_name: Mosvold, R.
  last_name: Mosvold
- first_name: J.
  full_name: Fauskanger, J.
  last_name: Fauskanger
- first_name: F.
  full_name: Ferretti, F.
  last_name: Ferretti
- first_name: N.
  full_name: Vondrová, N.
  last_name: Vondrová
language:
- iso: eng
page: 122-129
place: Prag
publication: 'Proceedings of the Nineteenth ERME Topic Conference: Connecting the
  Learning of Mathematics Teaching to Practice'
related_material:
  link:
  - relation: confirmation
    url: https://hal.science/hal-05463964v1
status: public
title: ' Initiating and establishing mathematical practices of determining and transforming
  numbers as a foundational skill in fostering mathematics teaching'
type: conference
user_id: '44184'
year: '2026'
...
---
_id: '64290'
article_number: '111382'
author:
- first_name: Milan
  full_name: Niestijl, Milan
  last_name: Niestijl
citation:
  ama: Niestijl M. Holomorphic induction beyond the norm-continuous setting, with
    applications to positive energy representations. <i>Journal of Functional Analysis</i>.
    2026;290(9). doi:<a href="https://doi.org/10.1016/j.jfa.2026.111382">10.1016/j.jfa.2026.111382</a>
  apa: Niestijl, M. (2026). Holomorphic induction beyond the norm-continuous setting,
    with applications to positive energy representations. <i>Journal of Functional
    Analysis</i>, <i>290</i>(9), Article 111382. <a href="https://doi.org/10.1016/j.jfa.2026.111382">https://doi.org/10.1016/j.jfa.2026.111382</a>
  bibtex: '@article{Niestijl_2026, title={Holomorphic induction beyond the norm-continuous
    setting, with applications to positive energy representations}, volume={290},
    DOI={<a href="https://doi.org/10.1016/j.jfa.2026.111382">10.1016/j.jfa.2026.111382</a>},
    number={9111382}, journal={Journal of Functional Analysis}, publisher={Elsevier
    BV}, author={Niestijl, Milan}, year={2026} }'
  chicago: Niestijl, Milan. “Holomorphic Induction beyond the Norm-Continuous Setting,
    with Applications to Positive Energy Representations.” <i>Journal of Functional
    Analysis</i> 290, no. 9 (2026). <a href="https://doi.org/10.1016/j.jfa.2026.111382">https://doi.org/10.1016/j.jfa.2026.111382</a>.
  ieee: 'M. Niestijl, “Holomorphic induction beyond the norm-continuous setting, with
    applications to positive energy representations,” <i>Journal of Functional Analysis</i>,
    vol. 290, no. 9, Art. no. 111382, 2026, doi: <a href="https://doi.org/10.1016/j.jfa.2026.111382">10.1016/j.jfa.2026.111382</a>.'
  mla: Niestijl, Milan. “Holomorphic Induction beyond the Norm-Continuous Setting,
    with Applications to Positive Energy Representations.” <i>Journal of Functional
    Analysis</i>, vol. 290, no. 9, 111382, Elsevier BV, 2026, doi:<a href="https://doi.org/10.1016/j.jfa.2026.111382">10.1016/j.jfa.2026.111382</a>.
  short: M. Niestijl, Journal of Functional Analysis 290 (2026).
date_created: 2026-02-20T09:38:34Z
date_updated: 2026-02-20T09:41:45Z
department:
- _id: '93'
doi: 10.1016/j.jfa.2026.111382
intvolume: '       290'
issue: '9'
language:
- iso: eng
publication: Journal of Functional Analysis
publication_identifier:
  issn:
  - 0022-1236
publication_status: published
publisher: Elsevier BV
status: public
title: Holomorphic induction beyond the norm-continuous setting, with applications
  to positive energy representations
type: journal_article
user_id: '104095'
volume: 290
year: '2026'
...
---
_id: '64569'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n                  <jats:p>We show how
    the Fourier transform for distributional sections of vector bundles over symmetric
    spaces of non‐compact type  can be used for questions of solvability of systems
    of invariant differential equations in analogy to Hörmander's proof of the Ehrenpreis–Malgrange
    theorem. We get complete solvability for the hyperbolic plane  and partial results
    for products  and the hyperbolic 3‐space .</jats:p>"
author:
- first_name: Martin
  full_name: Olbrich, Martin
  last_name: Olbrich
- first_name: Guendalina
  full_name: Palmirotta, Guendalina
  id: '109467'
  last_name: Palmirotta
citation:
  ama: Olbrich M, Palmirotta G. Solvability of invariant systems of differential equations on
    H2$\mathbb {H}^2$ and beyond. <i>Mathematische Nachrichten</i>. 2026;299(2):456-479.
    doi:<a href="https://doi.org/10.1002/mana.70100">10.1002/mana.70100</a>
  apa: Olbrich, M., &#38; Palmirotta, G. (2026). Solvability of invariant systems
    of differential equations on H2$\mathbb {H}^2$ and beyond. <i>Mathematische Nachrichten</i>,
    <i>299</i>(2), 456–479. <a href="https://doi.org/10.1002/mana.70100">https://doi.org/10.1002/mana.70100</a>
  bibtex: '@article{Olbrich_Palmirotta_2026, title={Solvability of invariant systems
    of differential equations on H2$\mathbb {H}^2$ and beyond}, volume={299}, DOI={<a
    href="https://doi.org/10.1002/mana.70100">10.1002/mana.70100</a>}, number={2},
    journal={Mathematische Nachrichten}, publisher={Wiley}, author={Olbrich, Martin
    and Palmirotta, Guendalina}, year={2026}, pages={456–479} }'
  chicago: 'Olbrich, Martin, and Guendalina Palmirotta. “Solvability of Invariant
    Systems of Differential Equations on H2$\mathbb {H}^2$ and Beyond.” <i>Mathematische
    Nachrichten</i> 299, no. 2 (2026): 456–79. <a href="https://doi.org/10.1002/mana.70100">https://doi.org/10.1002/mana.70100</a>.'
  ieee: 'M. Olbrich and G. Palmirotta, “Solvability of invariant systems of differential
    equations on H2$\mathbb {H}^2$ and beyond,” <i>Mathematische Nachrichten</i>,
    vol. 299, no. 2, pp. 456–479, 2026, doi: <a href="https://doi.org/10.1002/mana.70100">10.1002/mana.70100</a>.'
  mla: Olbrich, Martin, and Guendalina Palmirotta. “Solvability of Invariant Systems
    of Differential Equations on H2$\mathbb {H}^2$ and Beyond.” <i>Mathematische Nachrichten</i>,
    vol. 299, no. 2, Wiley, 2026, pp. 456–79, doi:<a href="https://doi.org/10.1002/mana.70100">10.1002/mana.70100</a>.
  short: M. Olbrich, G. Palmirotta, Mathematische Nachrichten 299 (2026) 456–479.
date_created: 2026-02-20T19:56:33Z
date_updated: 2026-02-20T20:01:56Z
department:
- _id: '548'
doi: 10.1002/mana.70100
intvolume: '       299'
issue: '2'
language:
- iso: eng
page: 456-479
publication: Mathematische Nachrichten
publication_identifier:
  issn:
  - 0025-584X
  - 1522-2616
publication_status: published
publisher: Wiley
status: public
title: Solvability of invariant systems of differential equations on H2$\mathbb {H}^2$
  and beyond
type: journal_article
user_id: '109467'
volume: 299
year: '2026'
...
---
_id: '64629'
author:
- first_name: Helge
  full_name: Glöckner, Helge
  id: '178'
  last_name: Glöckner
- first_name: Karl-Hermann
  full_name: Neeb, Karl-Hermann
  last_name: Neeb
citation:
  ama: Glöckner H, Neeb K-H. Infinite-dimensional Lie groups. Published online 2026.
  apa: Glöckner, H., &#38; Neeb, K.-H. (2026). <i>Infinite-dimensional Lie groups</i>.
  bibtex: '@article{Glöckner_Neeb_2026, title={Infinite-dimensional Lie groups}, author={Glöckner,
    Helge and Neeb, Karl-Hermann}, year={2026} }'
  chicago: Glöckner, Helge, and Karl-Hermann Neeb. “Infinite-Dimensional Lie Groups,”
    2026.
  ieee: H. Glöckner and K.-H. Neeb, “Infinite-dimensional Lie groups.” 2026.
  mla: Glöckner, Helge, and Karl-Hermann Neeb. <i>Infinite-Dimensional Lie Groups</i>.
    2026.
  short: H. Glöckner, K.-H. Neeb, (2026).
date_created: 2026-02-26T06:56:00Z
date_updated: 2026-02-26T06:58:23Z
department:
- _id: '10'
- _id: '87'
- _id: '93'
external_id:
  arxiv:
  - arXiv:2602.12362
language:
- iso: eng
page: '1056'
status: public
title: Infinite-dimensional Lie groups
type: preprint
user_id: '178'
year: '2026'
...
---
_id: '64816'
abstract:
- lang: eng
  text: "We study a block mean-field Ising model with $N$ spins split into $s_N$ blocks,
    with Curie-Weiss interaction within blocks and nearest-neighbor coupling between
    blocks. While previous models deal with the block magnetization for a fixed number
    of blocks, we study the the simultaneous limit $N\\to\\infty$ and $s_N\\to\\infty$.
    The model interpolates between Curie-Weiss model for $s_N=1$, multi-species mean
    field for fixed $s_N=s$, and the 1D Ising model for each spin in its own block
    at $s_N=N$.\r\n  Under mild growth conditions on $s_N$, we prove a law of large
    numbers and a multivariate CLT with covariance given by the lattice Green's function.
    For instance, the high temperature CLT essentially covers the optimal range up
    to $s_N=o(N/(\\log N)^c)$ and the low temperature regime is new even for fixed
    number of blocks $s > 2$. In addition to the standard competition between entropy
    and energy, a new obstacle in the proofs is a curse of dimensionality as $s_N
    \\to \\infty$."
author:
- first_name: Jonas
  full_name: Jalowy, Jonas
  id: '113768'
  last_name: Jalowy
  orcid: 0000-0001-9624-2685
- first_name: Isabel
  full_name: Lammers, Isabel
  last_name: Lammers
- first_name: Matthias
  full_name: Löwe, Matthias
  last_name: Löwe
citation:
  ama: Jalowy J, Lammers I, Löwe M. The infinite block spin Ising model. <i>arXiv:260301994</i>.
    Published online 2026.
  apa: Jalowy, J., Lammers, I., &#38; Löwe, M. (2026). The infinite block spin Ising
    model. In <i>arXiv:2603.01994</i>.
  bibtex: '@article{Jalowy_Lammers_Löwe_2026, title={The infinite block spin Ising
    model}, journal={arXiv:2603.01994}, author={Jalowy, Jonas and Lammers, Isabel
    and Löwe, Matthias}, year={2026} }'
  chicago: Jalowy, Jonas, Isabel Lammers, and Matthias Löwe. “The Infinite Block Spin
    Ising Model.” <i>ArXiv:2603.01994</i>, 2026.
  ieee: J. Jalowy, I. Lammers, and M. Löwe, “The infinite block spin Ising model,”
    <i>arXiv:2603.01994</i>. 2026.
  mla: Jalowy, Jonas, et al. “The Infinite Block Spin Ising Model.” <i>ArXiv:2603.01994</i>,
    2026.
  short: J. Jalowy, I. Lammers, M. Löwe, ArXiv:2603.01994 (2026).
date_created: 2026-03-03T08:49:16Z
date_updated: 2026-03-03T08:49:33Z
department:
- _id: '94'
external_id:
  arxiv:
  - '2603.01994'
language:
- iso: eng
publication: arXiv:2603.01994
status: public
title: The infinite block spin Ising model
type: preprint
user_id: '113768'
year: '2026'
...
---
_id: '64865'
abstract:
- lang: eng
  text: We provide a method to systematically construct vector fields for which the
    dynamics display transitions corresponding to a desired hierarchical connection
    structure. This structure is given as a finite set of directed graphs $\mathbf{G}_1,\dotsc,\mathbf{G}_N$
    (the lower level), together with another digraph $\mathbfΓ$ on $N$ vertices (the
    top level). The dynamic realizations of $\mathbf{G}_1,\dotsc,\mathbf{G}_N$ are
    heteroclinic networks and they can be thought of as individual connection patterns
    on a given set of states. Edges in $\mathbfΓ$ correspond to transitions between
    these different patterns. In our construction, the connections given through $\mathbfΓ$
    are not heteroclinic, but excitable with zero threshold. This describes a dynamical
    transition between two invariant sets where every $δ$-neighborhood of the first
    set contains an initial condition with $ω$-limit in the second set. Thus, we prove
    a theorem that allows the systematic creation of hierarchical networks that are
    excitable on the top level, and heteroclinic on the lower level. Our results modify
    and extend the simplex realization method by Ashwin & Postlethwaite.
author:
- first_name: Sören
  full_name: von der Gracht, Sören
  id: '97359'
  last_name: von der Gracht
  orcid: 0000-0002-8054-2058
- first_name: Alexander
  full_name: Lohse, Alexander
  last_name: Lohse
citation:
  ama: von der Gracht S, Lohse A. Design of Hierarchical Excitable Networks. <i>arXiv:260306157</i>.
    Published online 2026.
  apa: von der Gracht, S., &#38; Lohse, A. (2026). Design of Hierarchical Excitable
    Networks. In <i>arXiv:2603.06157</i>.
  bibtex: '@article{von der Gracht_Lohse_2026, title={Design of Hierarchical Excitable
    Networks}, journal={arXiv:2603.06157}, author={von der Gracht, Sören and Lohse,
    Alexander}, year={2026} }'
  chicago: Gracht, Sören von der, and Alexander Lohse. “Design of Hierarchical Excitable
    Networks.” <i>ArXiv:2603.06157</i>, 2026.
  ieee: S. von der Gracht and A. Lohse, “Design of Hierarchical Excitable Networks,”
    <i>arXiv:2603.06157</i>. 2026.
  mla: von der Gracht, Sören, and Alexander Lohse. “Design of Hierarchical Excitable
    Networks.” <i>ArXiv:2603.06157</i>, 2026.
  short: S. von der Gracht, A. Lohse, ArXiv:2603.06157 (2026).
date_created: 2026-03-09T08:22:58Z
date_updated: 2026-03-09T08:26:49Z
ddc:
- '510'
department:
- _id: '101'
- _id: '841'
external_id:
  arxiv:
  - '2603.06157'
file:
- access_level: closed
  content_type: application/pdf
  creator: svdg
  date_created: 2026-03-09T08:26:04Z
  date_updated: 2026-03-09T08:26:04Z
  file_id: '64866'
  file_name: design-of-hierarchical-excitable-networks.pdf
  file_size: 5179491
  relation: main_file
  success: 1
file_date_updated: 2026-03-09T08:26:04Z
has_accepted_license: '1'
language:
- iso: eng
publication: arXiv:2603.06157
related_material:
  link:
  - relation: research_paper
    url: https://s-vdg.github.io/publication/design-of-hierarchical-excitable-networks/design-of-hierarchical-excitable-networks.pdf
status: public
title: Design of Hierarchical Excitable Networks
type: preprint
user_id: '97359'
year: '2026'
...
---
_id: '63435'
author:
- first_name: Leander
  full_name: Claes, Leander
  id: '11829'
  last_name: Claes
  orcid: 0000-0002-4393-268X
- first_name: Michael
  full_name: Winkler, Michael
  id: '31496'
  last_name: Winkler
citation:
  ama: 'Claes L, Winkler M. Describing smooth small-data solutions to a quasilinear
    hyperbolic-parabolic system by W 1,P energy analysis. <i>Nonlinear Analysis: Real
    World Applications</i>. 2026;91:104580. doi:<a href="https://doi.org/10.1016/j.nonrwa.2025.104580">10.1016/j.nonrwa.2025.104580</a>'
  apa: 'Claes, L., &#38; Winkler, M. (2026). Describing smooth small-data solutions
    to a quasilinear hyperbolic-parabolic system by W 1,P energy analysis. <i>Nonlinear
    Analysis: Real World Applications</i>, <i>91</i>, 104580. <a href="https://doi.org/10.1016/j.nonrwa.2025.104580">https://doi.org/10.1016/j.nonrwa.2025.104580</a>'
  bibtex: '@article{Claes_Winkler_2026, title={Describing smooth small-data solutions
    to a quasilinear hyperbolic-parabolic system by W 1,P energy analysis}, volume={91},
    DOI={<a href="https://doi.org/10.1016/j.nonrwa.2025.104580">10.1016/j.nonrwa.2025.104580</a>},
    journal={Nonlinear Analysis: Real World Applications}, publisher={Elsevier BV},
    author={Claes, Leander and Winkler, Michael}, year={2026}, pages={104580} }'
  chicago: 'Claes, Leander, and Michael Winkler. “Describing Smooth Small-Data Solutions
    to a Quasilinear Hyperbolic-Parabolic System by W 1,P Energy Analysis.” <i>Nonlinear
    Analysis: Real World Applications</i> 91 (2026): 104580. <a href="https://doi.org/10.1016/j.nonrwa.2025.104580">https://doi.org/10.1016/j.nonrwa.2025.104580</a>.'
  ieee: 'L. Claes and M. Winkler, “Describing smooth small-data solutions to a quasilinear
    hyperbolic-parabolic system by W 1,P energy analysis,” <i>Nonlinear Analysis:
    Real World Applications</i>, vol. 91, p. 104580, 2026, doi: <a href="https://doi.org/10.1016/j.nonrwa.2025.104580">10.1016/j.nonrwa.2025.104580</a>.'
  mla: 'Claes, Leander, and Michael Winkler. “Describing Smooth Small-Data Solutions
    to a Quasilinear Hyperbolic-Parabolic System by W 1,P Energy Analysis.” <i>Nonlinear
    Analysis: Real World Applications</i>, vol. 91, Elsevier BV, 2026, p. 104580,
    doi:<a href="https://doi.org/10.1016/j.nonrwa.2025.104580">10.1016/j.nonrwa.2025.104580</a>.'
  short: 'L. Claes, M. Winkler, Nonlinear Analysis: Real World Applications 91 (2026)
    104580.'
date_created: 2026-01-05T07:32:00Z
date_updated: 2026-01-05T07:40:49Z
department:
- _id: '49'
- _id: '90'
doi: 10.1016/j.nonrwa.2025.104580
intvolume: '        91'
language:
- iso: eng
page: '104580'
project:
- _id: '245'
  name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken
    für Leistungsschallanwendungen (NEPTUN)'
publication: 'Nonlinear Analysis: Real World Applications'
publication_identifier:
  issn:
  - 1468-1218
publisher: Elsevier BV
status: public
title: Describing smooth small-data solutions to a quasilinear hyperbolic-parabolic
  system by W 1,P energy analysis
type: journal_article
user_id: '11829'
volume: 91
year: '2026'
...
---
_id: '63557'
abstract:
- lang: eng
  text: We discretise a recently proposed new Lagrangian approach to optimal control
    problems with dynamics described by force-controlled Euler-Lagrange equations
    (Konopik et al., in Nonlinearity 38:11, 2025). The resulting discretisations are
    in the form of discrete Lagrangians. We show that the discrete necessary conditions
    for optimality obtained provide variational integrators for the continuous problem,
    akin to Karush-Kuhn-Tucker (KKT) conditions for standard direct approaches. This
    approach paves the way for the use of variational error analysis to derive the
    order of convergence of the resulting numerical schemes for both state and costate
    variables and to apply discrete Noether’s theorem to compute conserved quantities,
    distinguishing itself from existing geometric approaches. We show for a family
    of low-order discretisations that the resulting numerical schemes are ‘doubly-symplectic’,
    meaning they yield forced symplectic integrators for the underlying controlled
    mechanical system and overall symplectic integrators in the state-adjoint space.
    Multi-body dynamics examples are solved numerically using the new approach. In
    addition, the new approach is compared to standard direct approaches in terms
    of computational performance and error convergence. The results highlight the
    advantages of the new approach, namely, better performance and convergence behaviour
    of state and costate variables consistent with variational error analysis and
    automatic preservation of certain first integrals.
author:
- first_name: Michael
  full_name: Konopik, Michael
  last_name: Konopik
- first_name: Sigrid
  full_name: Leyendecker, Sigrid
  last_name: Leyendecker
- 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: Rodrigo T.
  full_name: Sato Martín de Almagro, Rodrigo T.
  last_name: Sato Martín de Almagro
citation:
  ama: Konopik M, Leyendecker S, Maslovskaya S, Ober-Blöbaum S, Sato Martín de Almagro
    RT. On the variational discretisation of optimal control problems for unconstrained
    Lagrangian dynamics. <i>Multibody System Dynamics</i>. Published online 2026.
    doi:<a href="https://doi.org/10.1007/s11044-025-10138-1">10.1007/s11044-025-10138-1</a>
  apa: Konopik, M., Leyendecker, S., Maslovskaya, S., Ober-Blöbaum, S., &#38; Sato Martín de Almagro,
    R. T. (2026). On the variational discretisation of optimal control problems for
    unconstrained Lagrangian dynamics. <i>Multibody System Dynamics</i>. <a href="https://doi.org/10.1007/s11044-025-10138-1">https://doi.org/10.1007/s11044-025-10138-1</a>
  bibtex: '@article{Konopik_Leyendecker_Maslovskaya_Ober-Blöbaum_Sato Martín de Almagro_2026,
    title={On the variational discretisation of optimal control problems for unconstrained
    Lagrangian dynamics}, DOI={<a href="https://doi.org/10.1007/s11044-025-10138-1">10.1007/s11044-025-10138-1</a>},
    journal={Multibody System Dynamics}, publisher={Springer Science and Business
    Media LLC}, author={Konopik, Michael and Leyendecker, Sigrid and Maslovskaya,
    Sofya and Ober-Blöbaum, Sina and Sato Martín de Almagro, Rodrigo T.}, year={2026}
    }'
  chicago: Konopik, Michael, Sigrid Leyendecker, Sofya Maslovskaya, Sina Ober-Blöbaum,
    and Rodrigo T. Sato Martín de Almagro. “On the Variational Discretisation of Optimal
    Control Problems for Unconstrained Lagrangian Dynamics.” <i>Multibody System Dynamics</i>,
    2026. <a href="https://doi.org/10.1007/s11044-025-10138-1">https://doi.org/10.1007/s11044-025-10138-1</a>.
  ieee: 'M. Konopik, S. Leyendecker, S. Maslovskaya, S. Ober-Blöbaum, and R. T. Sato Martín de Almagro,
    “On the variational discretisation of optimal control problems for unconstrained
    Lagrangian dynamics,” <i>Multibody System Dynamics</i>, 2026, doi: <a href="https://doi.org/10.1007/s11044-025-10138-1">10.1007/s11044-025-10138-1</a>.'
  mla: Konopik, Michael, et al. “On the Variational Discretisation of Optimal Control
    Problems for Unconstrained Lagrangian Dynamics.” <i>Multibody System Dynamics</i>,
    Springer Science and Business Media LLC, 2026, doi:<a href="https://doi.org/10.1007/s11044-025-10138-1">10.1007/s11044-025-10138-1</a>.
  short: M. Konopik, S. Leyendecker, S. Maslovskaya, S. Ober-Blöbaum, R.T. Sato Martín de Almagro,
    Multibody System Dynamics (2026).
date_created: 2026-01-12T11:33:54Z
date_updated: 2026-01-12T11:35:27Z
department:
- _id: '636'
doi: 10.1007/s11044-025-10138-1
language:
- iso: eng
publication: Multibody System Dynamics
publication_identifier:
  issn:
  - 1384-5640
  - 1573-272X
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: On the variational discretisation of optimal control problems for unconstrained
  Lagrangian dynamics
type: journal_article
user_id: '87909'
year: '2026'
...
---
_id: '64871'
author:
- first_name: Praful
  full_name: Rahangdale, Praful
  id: '103300'
  last_name: Rahangdale
citation:
  ama: Rahangdale P. Drinfeld correspondence in infinite dimensions. Published online
    2026.
  apa: Rahangdale, P. (2026). <i>Drinfeld correspondence in infinite dimensions</i>.
  bibtex: '@article{Rahangdale_2026, title={Drinfeld correspondence in infinite dimensions},
    author={Rahangdale, Praful}, year={2026} }'
  chicago: Rahangdale, Praful. “Drinfeld Correspondence in Infinite Dimensions,” 2026.
  ieee: P. Rahangdale, “Drinfeld correspondence in infinite dimensions.” 2026.
  mla: Rahangdale, Praful. <i>Drinfeld Correspondence in Infinite Dimensions</i>.
    2026.
  short: P. Rahangdale, (2026).
date_created: 2026-03-09T23:25:29Z
date_updated: 2026-03-09T23:26:46Z
department:
- _id: '10'
- _id: '87'
- _id: '93'
external_id:
  arxiv:
  - ' arXiv:2603.04634'
language:
- iso: eng
status: public
title: Drinfeld correspondence in infinite dimensions
type: preprint
user_id: '178'
year: '2026'
...
---
_id: '64979'
abstract:
- lang: eng
  text: We investigate homogeneous coupled cell systems with high-dimensional internal
    dynamics. In many studies on network dynamics, the analysis is restricted to networks
    with one-dimensional internal dynamics. Here, we show how symmetry explains the
    relation between dynamical behavior of systems with one-dimensional internal dynamics
    and with higher dimensional internal dynamics, when the underlying network topology
    is the same. Fundamental networks of homogeneous coupled cell systems (B. Rink,
    J. Sanders. Coupled Cell Networks and Their Hidden Symmetries. SIAM J. Math. Anal.
    46.2 (2014)) can be expressed in terms of monoid representations, which uniquely
    decompose into indecomposable subrepresentations. In the high-dimensional internal
    dynamics case, these subrepresentations are isomorphic to multiple copies of those
    one computes in the one-dimensional internal dynamics case. This has interesting
    implications for possible center subspaces in bifurcation analysis. We describe
    the effect on steady state and Hopf bifurcations in l-parameter families of network
    vector fields. The main results in that regard are that (1) generic one-parameter
    steady state bifurcations are qualitatively independent of the dimension of the
    internal dynamics and that, (2) in order to observe all generic l-parameter bifurcations
    that may occur for internal dynamics of any dimension, the internal dynamics has
    to be at least l-dimensional for steady state bifurcations and 2l-dimensional
    for Hopf bifurcations. Furthermore, we illustrate how additional structure in
    the network can be exploited to obtain even greater understanding of bifurcation
    scenarios in the high-dimensional case beyond qualitative statements about the
    collective dynamics. One-parameter steady state bifurcations in feedforward networks
    exhibit an unusual amplification in the asymptotic growth rates of individual
    cells, when these are one-dimensional (S. von der Gracht, E. Nijholt, B. Rink.
    Amplified steady state bifurcations in feedforward networks. Nonlinearity 35.4
    (2022)). As another main result, we prove that (3) the same cells exhibit this
    amplifying effect with the same growth rates when the internal dynamics is high-dimensional.
article_number: '118196'
article_type: original
author:
- first_name: Sören
  full_name: von der Gracht, Sören
  id: '97359'
  last_name: von der Gracht
  orcid: 0000-0002-8054-2058
- first_name: Eddie
  full_name: Nijholt, Eddie
  last_name: Nijholt
- first_name: Bob
  full_name: Rink, Bob
  last_name: Rink
citation:
  ama: von der Gracht S, Nijholt E, Rink B. Homogeneous coupled cell systems with
    high-dimensional internal dynamics. <i>Chaos, Solitons &#38; Fractals</i>. 2026;208.
    doi:<a href="https://doi.org/10.1016/j.chaos.2026.118196">10.1016/j.chaos.2026.118196</a>
  apa: von der Gracht, S., Nijholt, E., &#38; Rink, B. (2026). Homogeneous coupled
    cell systems with high-dimensional internal dynamics. <i>Chaos, Solitons &#38;
    Fractals</i>, <i>208</i>, Article 118196. <a href="https://doi.org/10.1016/j.chaos.2026.118196">https://doi.org/10.1016/j.chaos.2026.118196</a>
  bibtex: '@article{von der Gracht_Nijholt_Rink_2026, title={Homogeneous coupled cell
    systems with high-dimensional internal dynamics}, volume={208}, DOI={<a href="https://doi.org/10.1016/j.chaos.2026.118196">10.1016/j.chaos.2026.118196</a>},
    number={118196}, journal={Chaos, Solitons &#38; Fractals}, publisher={Elsevier
    BV}, author={von der Gracht, Sören and Nijholt, Eddie and Rink, Bob}, year={2026}
    }'
  chicago: Gracht, Sören von der, Eddie Nijholt, and Bob Rink. “Homogeneous Coupled
    Cell Systems with High-Dimensional Internal Dynamics.” <i>Chaos, Solitons &#38;
    Fractals</i> 208 (2026). <a href="https://doi.org/10.1016/j.chaos.2026.118196">https://doi.org/10.1016/j.chaos.2026.118196</a>.
  ieee: 'S. von der Gracht, E. Nijholt, and B. Rink, “Homogeneous coupled cell systems
    with high-dimensional internal dynamics,” <i>Chaos, Solitons &#38; Fractals</i>,
    vol. 208, Art. no. 118196, 2026, doi: <a href="https://doi.org/10.1016/j.chaos.2026.118196">10.1016/j.chaos.2026.118196</a>.'
  mla: von der Gracht, Sören, et al. “Homogeneous Coupled Cell Systems with High-Dimensional
    Internal Dynamics.” <i>Chaos, Solitons &#38; Fractals</i>, vol. 208, 118196, Elsevier
    BV, 2026, doi:<a href="https://doi.org/10.1016/j.chaos.2026.118196">10.1016/j.chaos.2026.118196</a>.
  short: S. von der Gracht, E. Nijholt, B. Rink, Chaos, Solitons &#38; Fractals 208
    (2026).
date_created: 2026-03-16T08:39:07Z
date_updated: 2026-03-16T08:42:56Z
ddc:
- '510'
department:
- _id: '101'
- _id: '841'
doi: 10.1016/j.chaos.2026.118196
external_id:
  arxiv:
  - '2510.06740'
file:
- access_level: closed
  content_type: application/pdf
  creator: svdg
  date_created: 2026-03-16T08:40:04Z
  date_updated: 2026-03-16T08:40:04Z
  file_id: '64980'
  file_name: homogeneous-coupled-cell-systems-with-high-dimensional-internal-dynamics.pdf
  file_size: 1951746
  relation: main_file
  success: 1
file_date_updated: 2026-03-16T08:40:04Z
has_accepted_license: '1'
intvolume: '       208'
keyword:
- Coupled cell systems
- Network dynamics
- Dimension reduction
- Bifurcation theory
- Symmetry
- Monoid representation theory
language:
- iso: eng
publication: Chaos, Solitons & Fractals
publication_identifier:
  issn:
  - 0960-0779
publication_status: published
publisher: Elsevier BV
status: public
title: Homogeneous coupled cell systems with high-dimensional internal dynamics
type: journal_article
user_id: '97359'
volume: 208
year: '2026'
...
---
_id: '64797'
author:
- first_name: Lisa
  full_name: Birk, Lisa
  last_name: Birk
- first_name: Gerrit
  full_name: Loth, Gerrit
  last_name: Loth
- first_name: Luca
  full_name: Jotzo, Luca
  id: '88811'
  last_name: Jotzo
  orcid: 0009-0003-1440-6466
- first_name: Karin
  full_name: Binder, Karin
  id: '83381'
  last_name: Binder
- first_name: Daniel
  full_name: Frischemeier, Daniel
  last_name: Frischemeier
citation:
  ama: 'Birk L, Loth G, Jotzo L, Binder K, Frischemeier D. Editorial. In: <i>Proceedings
    of the IASE 2025 Satellite Conference - Statistics and Data Science Education
    in STEAM</i>. International Association for Statistics Education; 2026. doi:<a
    href="https://doi.org/10.52041/iase25.158">10.52041/iase25.158</a>'
  apa: Birk, L., Loth, G., Jotzo, L., Binder, K., &#38; Frischemeier, D. (2026). Editorial.
    <i>Proceedings of the IASE 2025 Satellite Conference - Statistics and Data Science
    Education in STEAM</i>. <a href="https://doi.org/10.52041/iase25.158">https://doi.org/10.52041/iase25.158</a>
  bibtex: '@inproceedings{Birk_Loth_Jotzo_Binder_Frischemeier_2026, title={Editorial},
    DOI={<a href="https://doi.org/10.52041/iase25.158">10.52041/iase25.158</a>}, booktitle={Proceedings
    of the IASE 2025 Satellite Conference - Statistics and Data Science Education
    in STEAM}, publisher={International Association for Statistics Education}, author={Birk,
    Lisa and Loth, Gerrit and Jotzo, Luca and Binder, Karin and Frischemeier, Daniel},
    year={2026} }'
  chicago: Birk, Lisa, Gerrit Loth, Luca Jotzo, Karin Binder, and Daniel Frischemeier.
    “Editorial.” In <i>Proceedings of the IASE 2025 Satellite Conference - Statistics
    and Data Science Education in STEAM</i>. International Association for Statistics
    Education, 2026. <a href="https://doi.org/10.52041/iase25.158">https://doi.org/10.52041/iase25.158</a>.
  ieee: 'L. Birk, G. Loth, L. Jotzo, K. Binder, and D. Frischemeier, “Editorial,”
    2026, doi: <a href="https://doi.org/10.52041/iase25.158">10.52041/iase25.158</a>.'
  mla: Birk, Lisa, et al. “Editorial.” <i>Proceedings of the IASE 2025 Satellite Conference
    - Statistics and Data Science Education in STEAM</i>, International Association
    for Statistics Education, 2026, doi:<a href="https://doi.org/10.52041/iase25.158">10.52041/iase25.158</a>.
  short: 'L. Birk, G. Loth, L. Jotzo, K. Binder, D. Frischemeier, in: Proceedings
    of the IASE 2025 Satellite Conference - Statistics and Data Science Education
    in STEAM, International Association for Statistics Education, 2026.'
date_created: 2026-03-01T13:18:24Z
date_updated: 2026-03-17T10:19:16Z
department:
- _id: '979'
doi: 10.52041/iase25.158
language:
- iso: eng
publication: Proceedings of the IASE 2025 Satellite Conference - Statistics and Data
  Science Education in STEAM
publication_status: published
publisher: International Association for Statistics Education
status: public
title: Editorial
type: conference
user_id: '88811'
year: '2026'
...
---
_id: '64176'
author:
- first_name: Katrin
  full_name: Deutschen, Katrin
  id: '64894'
  last_name: Deutschen
- first_name: Inga
  full_name: Neufeld, Inga
  id: '61635'
  last_name: Neufeld
- first_name: Uta
  full_name: Häsel-Weide, Uta
  id: '60267'
  last_name: Häsel-Weide
  orcid: 0000-0001-6278-4240
citation:
  ama: Deutschen K, Neufeld I, Häsel-Weide U. Lernbegleitung produktiv gestalten.
    Mathematische Verstehensprozesse von Kindern anregen. <i>Grundschule aktuell</i>.
    2026;(173):10-11.
  apa: Deutschen, K., Neufeld, I., &#38; Häsel-Weide, U. (2026). Lernbegleitung produktiv
    gestalten. Mathematische Verstehensprozesse von Kindern anregen. <i>Grundschule
    aktuell</i>, <i>173</i>, 10–11.
  bibtex: '@article{Deutschen_Neufeld_Häsel-Weide_2026, title={Lernbegleitung produktiv
    gestalten. Mathematische Verstehensprozesse von Kindern anregen.}, number={173},
    journal={Grundschule aktuell}, author={Deutschen, Katrin and Neufeld, Inga and
    Häsel-Weide, Uta}, year={2026}, pages={10–11} }'
  chicago: 'Deutschen, Katrin, Inga Neufeld, and Uta Häsel-Weide. “Lernbegleitung
    produktiv gestalten. Mathematische Verstehensprozesse von Kindern anregen.” <i>Grundschule
    aktuell</i>, no. 173 (2026): 10–11.'
  ieee: K. Deutschen, I. Neufeld, and U. Häsel-Weide, “Lernbegleitung produktiv gestalten.
    Mathematische Verstehensprozesse von Kindern anregen.,” <i>Grundschule aktuell</i>,
    no. 173, pp. 10–11, 2026.
  mla: Deutschen, Katrin, et al. “Lernbegleitung produktiv gestalten. Mathematische
    Verstehensprozesse von Kindern anregen.” <i>Grundschule aktuell</i>, no. 173,
    2026, pp. 10–11.
  short: K. Deutschen, I. Neufeld, U. Häsel-Weide, Grundschule aktuell (2026) 10–11.
date_created: 2026-02-16T12:16:29Z
date_updated: 2026-03-17T10:48:56Z
department:
- _id: '543'
issue: '173'
language:
- iso: ger
page: 10-11
publication: Grundschule aktuell
status: public
title: Lernbegleitung produktiv gestalten. Mathematische Verstehensprozesse von Kindern
  anregen.
type: journal_article
user_id: '44184'
year: '2026'
...
---
_id: '65026'
author:
- first_name: Inga
  full_name: Neufeld, Inga
  id: '61635'
  last_name: Neufeld
- first_name: Uta
  full_name: Häsel-Weide, Uta
  id: '60267'
  last_name: Häsel-Weide
  orcid: 0000-0001-6278-4240
citation:
  ama: 'Neufeld I, Häsel-Weide U.  Lernbegleitung in der mathematischen Förderung.
    Praktiken von (angehenden) Lehrkräften bei der Förderung arithmetischer Basiskompetenzen.
    In: Vogelsang C, Grotegurt L, Bruns J, Riese J, Fechner S, eds. <i>Handlungsorientierung
    in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften. Konzeptionen
    Und Forschungsperspektiven</i>. ; 2026:119-134. doi:<a href="https://doi.org/10.31244/9783818851057
    ">10.31244/9783818851057 </a>'
  apa: Neufeld, I., &#38; Häsel-Weide, U. (2026).  Lernbegleitung in der mathematischen
    Förderung. Praktiken von (angehenden) Lehrkräften bei der Förderung arithmetischer
    Basiskompetenzen. In C. Vogelsang, L. Grotegurt, J. Bruns, J. Riese, &#38; S.
    Fechner (Eds.), <i>Handlungsorientierung in der Ausbildung von Lehrkräften und
    pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven</i> (pp. 119–134).
    <a href="https://doi.org/10.31244/9783818851057 ">https://doi.org/10.31244/9783818851057
    </a>
  bibtex: '@inbook{Neufeld_Häsel-Weide_2026, title={ Lernbegleitung in der mathematischen
    Förderung. Praktiken von (angehenden) Lehrkräften bei der Förderung arithmetischer
    Basiskompetenzen}, DOI={<a href="https://doi.org/10.31244/9783818851057 ">10.31244/9783818851057
    </a>}, booktitle={Handlungsorientierung in der Ausbildung von Lehrkräften und
    pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven}, author={Neufeld,
    Inga and Häsel-Weide, Uta}, editor={Vogelsang, C. and Grotegurt, L. and Bruns,
    J. and Riese, J. and Fechner, S.}, year={2026}, pages={119–134} }'
  chicago: Neufeld, Inga, and Uta Häsel-Weide. “ Lernbegleitung in Der Mathematischen
    Förderung. Praktiken von (Angehenden) Lehrkräften Bei Der Förderung Arithmetischer
    Basiskompetenzen.” In <i>Handlungsorientierung in Der Ausbildung von Lehrkräften
    Und Pädagogischen Fachkräften. Konzeptionen Und Forschungsperspektiven</i>, edited
    by C. Vogelsang, L. Grotegurt, J. Bruns, J. Riese, and S. Fechner, 119–34, 2026.
    <a href="https://doi.org/10.31244/9783818851057 ">https://doi.org/10.31244/9783818851057
    </a>.
  ieee: I. Neufeld and U. Häsel-Weide, “ Lernbegleitung in der mathematischen Förderung.
    Praktiken von (angehenden) Lehrkräften bei der Förderung arithmetischer Basiskompetenzen,”
    in <i>Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen
    Fachkräften. Konzeptionen und Forschungsperspektiven</i>, C. Vogelsang, L. Grotegurt,
    J. Bruns, J. Riese, and S. Fechner, Eds. 2026, pp. 119–134.
  mla: Neufeld, Inga, and Uta Häsel-Weide. “ Lernbegleitung in Der Mathematischen
    Förderung. Praktiken von (Angehenden) Lehrkräften Bei Der Förderung Arithmetischer
    Basiskompetenzen.” <i>Handlungsorientierung in Der Ausbildung von Lehrkräften
    Und Pädagogischen Fachkräften. Konzeptionen Und Forschungsperspektiven</i>, edited
    by C. Vogelsang et al., 2026, pp. 119–34, doi:<a href="https://doi.org/10.31244/9783818851057
    ">10.31244/9783818851057 </a>.
  short: 'I. Neufeld, U. Häsel-Weide, in: C. Vogelsang, L. Grotegurt, J. Bruns, J.
    Riese, S. Fechner (Eds.), Handlungsorientierung in Der Ausbildung von Lehrkräften
    Und Pädagogischen Fachkräften. Konzeptionen Und Forschungsperspektiven, 2026,
    pp. 119–134.'
date_created: 2026-03-17T10:57:17Z
date_updated: 2026-03-17T11:03:11Z
department:
- _id: '543'
doi: '10.31244/9783818851057 '
editor:
- first_name: C.
  full_name: Vogelsang, C.
  last_name: Vogelsang
- first_name: L.
  full_name: Grotegurt, L.
  last_name: Grotegurt
- first_name: J.
  full_name: Bruns, J.
  last_name: Bruns
- first_name: J.
  full_name: Riese, J.
  last_name: Riese
- first_name: S.
  full_name: Fechner, S.
  last_name: Fechner
language:
- iso: eng
page: 119-134
publication: Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen
  Fachkräften. Konzeptionen und Forschungsperspektiven
status: public
title: ' Lernbegleitung in der mathematischen Förderung. Praktiken von (angehenden)
  Lehrkräften bei der Förderung arithmetischer Basiskompetenzen'
type: book_chapter
user_id: '44184'
year: '2026'
...
