---
_id: '5632'
abstract:
- lang: eng
  text: 'Enduring doubts about the value of IS investments reveal that IS researchers
    have not fully managed to identify and to explain the economic benefits of IS.
    Three research tasks are essential requisites on the path towards addressing this
    criticism: the synthesis of knowledge, the identification of lack of knowledge,
    and the proposition of paths for closing knowledge gaps. This paper considers
    each of these tasks by a) synthesizing key research findings based on a comprehensive
    literature review, b) identifying and unfolding key limitations of current research,
    and c) applying a decision-theoretic perspective, which opens new horizons to
    IS business value research and shows paths for overcoming the limitations. The
    adoption of this perspective results in a decision-theoretic foundation of IS
    business value research and includes the proposition of a consistent terminology
    and a research model that frames further research.'
author:
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
- first_name: Christian
  full_name: Bodenstein, Christian
  last_name: Bodenstein
citation:
  ama: 'Schryen G, Bodenstein C. A decision-theoretic foundation of IS business value
    research. In: <i>Proceedings of the 18th European Conference on Information Systems
    (ECIS 2010)</i>. ; 2010.'
  apa: Schryen, G., &#38; Bodenstein, C. (2010). A decision-theoretic foundation of
    IS business value research. In <i>Proceedings of the 18th European Conference
    on Information Systems (ECIS 2010)</i>.
  bibtex: '@inproceedings{Schryen_Bodenstein_2010, title={A decision-theoretic foundation
    of IS business value research}, booktitle={Proceedings of the 18th European Conference
    on Information Systems (ECIS 2010)}, author={Schryen, Guido and Bodenstein, Christian},
    year={2010} }'
  chicago: Schryen, Guido, and Christian Bodenstein. “A Decision-Theoretic Foundation
    of IS Business Value Research.” In <i>Proceedings of the 18th European Conference
    on Information Systems (ECIS 2010)</i>, 2010.
  ieee: G. Schryen and C. Bodenstein, “A decision-theoretic foundation of IS business
    value research,” in <i>Proceedings of the 18th European Conference on Information
    Systems (ECIS 2010)</i>, 2010.
  mla: Schryen, Guido, and Christian Bodenstein. “A Decision-Theoretic Foundation
    of IS Business Value Research.” <i>Proceedings of the 18th European Conference
    on Information Systems (ECIS 2010)</i>, 2010.
  short: 'G. Schryen, C. Bodenstein, in: Proceedings of the 18th European Conference
    on Information Systems (ECIS 2010), 2010.'
date_created: 2018-11-14T14:24:25Z
date_updated: 2022-01-06T07:02:14Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
  content_type: application/pdf
  creator: hsiemes
  date_created: 2018-12-11T15:24:22Z
  date_updated: 2018-12-13T15:20:37Z
  file_id: '6193'
  file_name: IS business value - ECIS - Final Version.pdf
  file_size: 174368
  relation: main_file
file_date_updated: 2018-12-13T15:20:37Z
has_accepted_license: '1'
keyword:
- Decision theory
- IT value
- IS assessment
- IS evaluation
language:
- iso: eng
oa: '1'
publication: Proceedings of the 18th European Conference on Information Systems (ECIS
  2010)
status: public
title: A decision-theoretic foundation of IS business value research
type: conference
user_id: '61579'
year: '2010'
...
---
_id: '5643'
abstract:
- lang: eng
  text: Enduring doubts about the value of IS investments reveal that IS researchers
    have not fully managed to identify and to explain the economic benefits of IS.
    This paper assumes that literature reviews, which represent a powerful instrument
    for the identification and synthesis of knowledge, have not tapped their full
    potential to address this issue due to deficiencies in methodology. The analysis
    of 18 literature reviews published in pertinent academic outlets during the past
    20 years shows such deficiencies. Two of the most critical weaknesses identified
    are (1) the lack of theory use in most reviews and (2) a weak linkage of reviews,
    resulting in little progress in theory and framework development. The systematic
    identification of these weaknesses and the extraction of promising methodological
    examples from past literature are the main contributions of this work, which supports
    the composition of more effective literature reviews in future research.
author:
- first_name: Guido
  full_name: Schryen, Guido
  id: '72850'
  last_name: Schryen
citation:
  ama: 'Schryen G. An Analysis of Literature Reviews on IS Business Value: How Deficiencies
    in Methodology and Theory Use Resulted in Limited Effectiveness. In: <i>Proceedings
    of the First Scandinavian Conference on Information Systems (SCIS)</i>. ; 2010.'
  apa: 'Schryen, G. (2010). An Analysis of Literature Reviews on IS Business Value:
    How Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness.
    In <i>Proceedings of the First Scandinavian Conference on Information Systems
    (SCIS)</i>.'
  bibtex: '@inproceedings{Schryen_2010, title={An Analysis of Literature Reviews on
    IS Business Value: How Deficiencies in Methodology and Theory Use Resulted in
    Limited Effectiveness}, booktitle={Proceedings of the First Scandinavian Conference
    on Information Systems (SCIS)}, author={Schryen, Guido}, year={2010} }'
  chicago: 'Schryen, Guido. “An Analysis of Literature Reviews on IS Business Value:
    How Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness.”
    In <i>Proceedings of the First Scandinavian Conference on Information Systems
    (SCIS)</i>, 2010.'
  ieee: 'G. Schryen, “An Analysis of Literature Reviews on IS Business Value: How
    Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness,”
    in <i>Proceedings of the First Scandinavian Conference on Information Systems
    (SCIS)</i>, 2010.'
  mla: 'Schryen, Guido. “An Analysis of Literature Reviews on IS Business Value: How
    Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness.”
    <i>Proceedings of the First Scandinavian Conference on Information Systems (SCIS)</i>,
    2010.'
  short: 'G. Schryen, in: Proceedings of the First Scandinavian Conference on Information
    Systems (SCIS), 2010.'
date_created: 2018-11-14T14:36:26Z
date_updated: 2022-01-06T07:02:18Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
  content_type: application/pdf
  creator: hsiemes
  date_created: 2018-12-11T15:14:51Z
  date_updated: 2018-12-13T15:17:00Z
  file_id: '6186'
  file_name: 2010_Book_ScandinavianInformationSystems - Schryen.pdf
  file_size: 302340
  relation: main_file
file_date_updated: 2018-12-13T15:17:00Z
has_accepted_license: '1'
keyword:
- Literature review
- Business value
- Information systems
- Methodology
- Theory
language:
- iso: eng
oa: '1'
publication: Proceedings of the First Scandinavian Conference on Information Systems
  (SCIS)
status: public
title: 'An Analysis of Literature Reviews on IS Business Value: How Deficiencies in
  Methodology and Theory Use Resulted in Limited Effectiveness'
type: conference
user_id: '61579'
year: '2010'
...
---
_id: '34887'
abstract:
- lang: eng
  text: 'Let d be a nonsquare positive integer. We give the value of the natural probability
    that the narrow ideal class groups of the quadratic fields ℚ(√d) and ℚ(√−d) have
    the same 4-ranks. '
author:
- first_name: Étienne
  full_name: Fouvry, Étienne
  last_name: Fouvry
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
citation:
  ama: Fouvry É, Klüners J. On the Spiegelungssatz for the 4-rank. <i>Algebra &#38;amp;
    Number Theory</i>. 2010;4(5):493-508. doi:<a href="https://doi.org/10.2140/ant.2010.4.493">10.2140/ant.2010.4.493</a>
  apa: Fouvry, É., &#38; Klüners, J. (2010). On the Spiegelungssatz for the 4-rank.
    <i>Algebra &#38;amp; Number Theory</i>, <i>4</i>(5), 493–508. <a href="https://doi.org/10.2140/ant.2010.4.493">https://doi.org/10.2140/ant.2010.4.493</a>
  bibtex: '@article{Fouvry_Klüners_2010, title={On the Spiegelungssatz for the 4-rank},
    volume={4}, DOI={<a href="https://doi.org/10.2140/ant.2010.4.493">10.2140/ant.2010.4.493</a>},
    number={5}, journal={Algebra &#38;amp; Number Theory}, publisher={Mathematical
    Sciences Publishers}, author={Fouvry, Étienne and Klüners, Jürgen}, year={2010},
    pages={493–508} }'
  chicago: 'Fouvry, Étienne, and Jürgen Klüners. “On the Spiegelungssatz for the 4-Rank.”
    <i>Algebra &#38;amp; Number Theory</i> 4, no. 5 (2010): 493–508. <a href="https://doi.org/10.2140/ant.2010.4.493">https://doi.org/10.2140/ant.2010.4.493</a>.'
  ieee: 'É. Fouvry and J. Klüners, “On the Spiegelungssatz for the 4-rank,” <i>Algebra
    &#38;amp; Number Theory</i>, vol. 4, no. 5, pp. 493–508, 2010, doi: <a href="https://doi.org/10.2140/ant.2010.4.493">10.2140/ant.2010.4.493</a>.'
  mla: Fouvry, Étienne, and Jürgen Klüners. “On the Spiegelungssatz for the 4-Rank.”
    <i>Algebra &#38;amp; Number Theory</i>, vol. 4, no. 5, Mathematical Sciences Publishers,
    2010, pp. 493–508, doi:<a href="https://doi.org/10.2140/ant.2010.4.493">10.2140/ant.2010.4.493</a>.
  short: É. Fouvry, J. Klüners, Algebra &#38;amp; Number Theory 4 (2010) 493–508.
date_created: 2022-12-23T09:10:12Z
date_updated: 2023-03-06T10:18:14Z
department:
- _id: '102'
doi: 10.2140/ant.2010.4.493
intvolume: '         4'
issue: '5'
keyword:
- Algebra and Number Theory
language:
- iso: eng
page: 493-508
publication: Algebra &amp; Number Theory
publication_identifier:
  issn:
  - 1937-0652
publication_status: published
publisher: Mathematical Sciences Publishers
status: public
title: On the Spiegelungssatz for the 4-rank
type: journal_article
user_id: '93826'
volume: 4
year: '2010'
...
---
_id: '32519'
abstract:
- lang: ger
  text: "Im vorliegenden Beitrag wird der Zusammenhang zwischen der Fähigkeit zur
    Perspektivenübernahme und sinnverstehendem Lesen dargestellt. Auf der Grundlage
    von Arbeiten zum Textverstehen sowie zu Perspektivenübernahme und Theory of Mind
    wurde ein positiver Zusammenhang zwischen Perspektivenübernahmefähigkeit und Textverstehensleistung
    erwartet. Diese Hypothese wurde an zwei Stichproben unterschiedlichen Alters geprüft:
    In der ersten Studie beantworteten 37 Vorschulkinder Fragen zu vorgelesenen Geschichten
    sowie Perspektivenübernahme-Aufgaben. Zwischen den Bereichen fand sich eine deutliche
    positive Korrelation, die bei\r\nKontrolle der Intelligenz erhalten blieb. An
    der zweiten Studie nahmen 69 Grundschulkinder der\r\ndritten Jahrgangsstufe teil,
    die Texte lasen und Aufgaben dazu wie auch zur Perspektivenübernahme bearbeiteten.
    In dieser Stichprobe fand sich der erwartete Zusammenhang ausschließlich\r\nin
    der Teilgruppe der guten Leser. Er blieb bei Kontrolle der Intelligenz erhalten.
    Die Ergebnisse\r\nwerden auch in Hinblick auf die Förderung der Lesekompetenz
    diskutiert."
author:
- first_name: Heike M.
  full_name: Buhl, Heike M.
  id: '27152'
  last_name: Buhl
- first_name: Franziska
  full_name: Möller, Franziska
  last_name: Möller
- first_name: Manuela
  full_name: Oebser, Manuela
  last_name: Oebser
- first_name: Freia
  full_name: Stein, Freia
  last_name: Stein
- first_name: Peter
  full_name: Noack, Peter
  last_name: Noack
citation:
  ama: Buhl HM, Möller F, Oebser M, Stein F, Noack P. Zusammenhänge zwischen der Fähigkeit
    zur Perspektivenübernahme und dem Textverstehen im Vor- und Grundschulalter. <i>Diskurs
    Kindheits- und Jugendforschung</i>. 2009;1:75-90.
  apa: Buhl, H. M., Möller, F., Oebser, M., Stein, F., &#38; Noack, P. (2009). Zusammenhänge
    zwischen der Fähigkeit zur Perspektivenübernahme und dem Textverstehen im Vor-
    und Grundschulalter. <i>Diskurs Kindheits- und Jugendforschung</i>, <i>1</i>,
    75–90.
  bibtex: '@article{Buhl_Möller_Oebser_Stein_Noack_2009, title={Zusammenhänge zwischen
    der Fähigkeit zur Perspektivenübernahme und dem Textverstehen im Vor- und Grundschulalter},
    volume={1}, journal={Diskurs Kindheits- und Jugendforschung}, author={Buhl, Heike
    M. and Möller, Franziska and Oebser, Manuela and Stein, Freia and Noack, Peter},
    year={2009}, pages={75–90} }'
  chicago: 'Buhl, Heike M., Franziska Möller, Manuela Oebser, Freia Stein, and Peter
    Noack. “Zusammenhänge zwischen der Fähigkeit zur Perspektivenübernahme und dem
    Textverstehen im Vor- und Grundschulalter.” <i>Diskurs Kindheits- und Jugendforschung</i>
    1 (2009): 75–90.'
  ieee: H. M. Buhl, F. Möller, M. Oebser, F. Stein, and P. Noack, “Zusammenhänge zwischen
    der Fähigkeit zur Perspektivenübernahme und dem Textverstehen im Vor- und Grundschulalter,”
    <i>Diskurs Kindheits- und Jugendforschung</i>, vol. 1, pp. 75–90, 2009.
  mla: Buhl, Heike M., et al. “Zusammenhänge zwischen der Fähigkeit zur Perspektivenübernahme
    und dem Textverstehen im Vor- und Grundschulalter.” <i>Diskurs Kindheits- und
    Jugendforschung</i>, vol. 1, 2009, pp. 75–90.
  short: H.M. Buhl, F. Möller, M. Oebser, F. Stein, P. Noack, Diskurs Kindheits- und
    Jugendforschung 1 (2009) 75–90.
date_created: 2022-08-02T23:58:56Z
date_updated: 2022-08-29T04:44:12Z
department:
- _id: '427'
extern: '1'
intvolume: '         1'
keyword:
- Textverstehen
- Lesekompetenz
- Perspektivenübernahme
- Theory of Mind
- Kindesalter
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://www.ssoar.info/ssoar/bitstream/handle/document/33446/ssoar-disk-2009-1-buhl_et_al-Zusammenhange_zwischen_der_Fahigkeit_zur.pdf
oa: '1'
page: 75 - 90
publication: Diskurs Kindheits- und Jugendforschung
publication_status: published
status: public
title: Zusammenhänge zwischen der Fähigkeit zur Perspektivenübernahme und dem Textverstehen
  im Vor- und Grundschulalter
type: journal_article
user_id: '42165'
volume: 1
year: '2009'
...
---
_id: '34889'
abstract:
- lang: eng
  text: We prove that van Hoeij’s original algorithm to factor univariate polynomials
    over the rationals runs in polynomial time, as well as natural variants. In particular,
    our approach also yields polynomial time complexity results for bivariate polynomials
    over a finite field.
author:
- first_name: Karim
  full_name: Belabas, Karim
  last_name: Belabas
- first_name: Mark
  full_name: van Hoeij, Mark
  last_name: van Hoeij
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
- first_name: Allan
  full_name: Steel, Allan
  last_name: Steel
citation:
  ama: Belabas K, van Hoeij M, Klüners J, Steel A. Factoring polynomials over global
    fields. <i>Journal de Théorie des Nombres de Bordeaux</i>. 2009;21(1):15-39. doi:<a
    href="https://doi.org/10.5802/jtnb.655">10.5802/jtnb.655</a>
  apa: Belabas, K., van Hoeij, M., Klüners, J., &#38; Steel, A. (2009). Factoring
    polynomials over global fields. <i>Journal de Théorie Des Nombres de Bordeaux</i>,
    <i>21</i>(1), 15–39. <a href="https://doi.org/10.5802/jtnb.655">https://doi.org/10.5802/jtnb.655</a>
  bibtex: '@article{Belabas_van Hoeij_Klüners_Steel_2009, title={Factoring polynomials
    over global fields}, volume={21}, DOI={<a href="https://doi.org/10.5802/jtnb.655">10.5802/jtnb.655</a>},
    number={1}, journal={Journal de Théorie des Nombres de Bordeaux}, publisher={Cellule
    MathDoc/CEDRAM}, author={Belabas, Karim and van Hoeij, Mark and Klüners, Jürgen
    and Steel, Allan}, year={2009}, pages={15–39} }'
  chicago: 'Belabas, Karim, Mark van Hoeij, Jürgen Klüners, and Allan Steel. “Factoring
    Polynomials over Global Fields.” <i>Journal de Théorie Des Nombres de Bordeaux</i>
    21, no. 1 (2009): 15–39. <a href="https://doi.org/10.5802/jtnb.655">https://doi.org/10.5802/jtnb.655</a>.'
  ieee: 'K. Belabas, M. van Hoeij, J. Klüners, and A. Steel, “Factoring polynomials
    over global fields,” <i>Journal de Théorie des Nombres de Bordeaux</i>, vol. 21,
    no. 1, pp. 15–39, 2009, doi: <a href="https://doi.org/10.5802/jtnb.655">10.5802/jtnb.655</a>.'
  mla: Belabas, Karim, et al. “Factoring Polynomials over Global Fields.” <i>Journal
    de Théorie Des Nombres de Bordeaux</i>, vol. 21, no. 1, Cellule MathDoc/CEDRAM,
    2009, pp. 15–39, doi:<a href="https://doi.org/10.5802/jtnb.655">10.5802/jtnb.655</a>.
  short: K. Belabas, M. van Hoeij, J. Klüners, A. Steel, Journal de Théorie Des Nombres
    de Bordeaux 21 (2009) 15–39.
date_created: 2022-12-23T09:33:37Z
date_updated: 2023-03-06T09:09:56Z
department:
- _id: '102'
doi: 10.5802/jtnb.655
external_id:
  arxiv:
  - 'math/0409510 '
intvolume: '        21'
issue: '1'
keyword:
- Algebra and Number Theory
language:
- iso: eng
page: 15-39
publication: Journal de Théorie des Nombres de Bordeaux
publication_identifier:
  issn:
  - 1246-7405
publication_status: published
publisher: Cellule MathDoc/CEDRAM
status: public
title: Factoring polynomials over global fields
type: journal_article
user_id: '93826'
volume: 21
year: '2009'
...
---
_id: '9568'
abstract:
- lang: eng
  text: A simple pre-stress estimate method of Langevin transducers is studied. The
    measurement setup consists of a capacitor, an impedance converter and a voltmeter.
    Based on the piezoelectric equation and the basic circuit theory, the mathematical
    expression between the pre-stress and the voltage across the capacitor is derived.
    The pre-stress level can then be calculated out of the measurement of the capacitor
    voltage. In order to evaluate the precision of this method, a force washer is
    used to measure the pre-stress of the Langevin transducer. The result shows the
    pre-stress level obtained from this method is 30-40\% higher than the pre-stress
    level measured by the force washer. This method is simple and can be used to estimate
    the pre-stress of various Langevin transducers. The precision of this method can
    be raised if d33 is identified under different pre-stress levels.
author:
- first_name: Fu
  full_name: Bo, Fu
  last_name: Bo
- first_name: Li
  full_name: Ting, Li
  last_name: Ting
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Bo F, Ting L, Hemsel T. A simple pre-stress estimating method of langevin
    transducers. In: <i>Piezoelectricity, Acoustic Waves, and Device Applications,
    2008. SPAWDA 2008. Symposium On</i>. ; 2008:324-327. doi:<a href="https://doi.org/10.1109/SPAWDA.2008.4775801">10.1109/SPAWDA.2008.4775801</a>'
  apa: Bo, F., Ting, L., &#38; Hemsel, T. (2008). A simple pre-stress estimating method
    of langevin transducers. In <i>Piezoelectricity, Acoustic Waves, and Device Applications,
    2008. SPAWDA 2008. Symposium on</i> (pp. 324–327). <a href="https://doi.org/10.1109/SPAWDA.2008.4775801">https://doi.org/10.1109/SPAWDA.2008.4775801</a>
  bibtex: '@inproceedings{Bo_Ting_Hemsel_2008, title={A simple pre-stress estimating
    method of langevin transducers}, DOI={<a href="https://doi.org/10.1109/SPAWDA.2008.4775801">10.1109/SPAWDA.2008.4775801</a>},
    booktitle={Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA
    2008. Symposium on}, author={Bo, Fu and Ting, Li and Hemsel, Tobias}, year={2008},
    pages={324–327} }'
  chicago: Bo, Fu, Li Ting, and Tobias Hemsel. “A Simple Pre-Stress Estimating Method
    of Langevin Transducers.” In <i>Piezoelectricity, Acoustic Waves, and Device Applications,
    2008. SPAWDA 2008. Symposium On</i>, 324–27, 2008. <a href="https://doi.org/10.1109/SPAWDA.2008.4775801">https://doi.org/10.1109/SPAWDA.2008.4775801</a>.
  ieee: F. Bo, L. Ting, and T. Hemsel, “A simple pre-stress estimating method of langevin
    transducers,” in <i>Piezoelectricity, Acoustic Waves, and Device Applications,
    2008. SPAWDA 2008. Symposium on</i>, 2008, pp. 324–327.
  mla: Bo, Fu, et al. “A Simple Pre-Stress Estimating Method of Langevin Transducers.”
    <i>Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008.
    Symposium On</i>, 2008, pp. 324–27, doi:<a href="https://doi.org/10.1109/SPAWDA.2008.4775801">10.1109/SPAWDA.2008.4775801</a>.
  short: 'F. Bo, L. Ting, T. Hemsel, in: Piezoelectricity, Acoustic Waves, and Device
    Applications, 2008. SPAWDA 2008. Symposium On, 2008, pp. 324–327.'
date_created: 2019-04-29T11:16:13Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1109/SPAWDA.2008.4775801
keyword:
- capacitors
- impedance convertors
- piezoelectric transducers
- stress analysis
- Langevin transducers
- basic circuit theory
- capacitor
- impedance converter
- piezoelectric equation
- pre-stress estimating method
- voltmeter
- Capacitors
- Educational institutions
- Equations
- Force measurement
- Impedance measurement
- Manufacturing
- Mechatronics
- Piezoelectric transducers
- Voltage
- Voltmeters
- Langevin transducer
- capacitor
- piezoelectric element
- pre-stress
language:
- iso: eng
page: 324-327
publication: Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA
  2008. Symposium on
status: public
title: A simple pre-stress estimating method of langevin transducers
type: conference
user_id: '55222'
year: '2008'
...
---
_id: '45431'
author:
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
citation:
  ama: Mahnken R. A Newton-Multigrid algrithm for elasto-plastic/viscoplastic problems.
    <i>Computational Mechanics</i>. 2008;15(5):408-425. doi:<a href="https://doi.org/10.1007/bf00350355">10.1007/bf00350355</a>
  apa: Mahnken, R. (2008). A Newton-Multigrid algrithm for elasto-plastic/viscoplastic
    problems. <i>Computational Mechanics</i>, <i>15</i>(5), 408–425. <a href="https://doi.org/10.1007/bf00350355">https://doi.org/10.1007/bf00350355</a>
  bibtex: '@article{Mahnken_2008, title={A Newton-Multigrid algrithm for elasto-plastic/viscoplastic
    problems}, volume={15}, DOI={<a href="https://doi.org/10.1007/bf00350355">10.1007/bf00350355</a>},
    number={5}, journal={Computational Mechanics}, publisher={Springer Science and
    Business Media LLC}, author={Mahnken, Rolf}, year={2008}, pages={408–425} }'
  chicago: 'Mahnken, Rolf. “A Newton-Multigrid Algrithm for Elasto-Plastic/Viscoplastic
    Problems.” <i>Computational Mechanics</i> 15, no. 5 (2008): 408–25. <a href="https://doi.org/10.1007/bf00350355">https://doi.org/10.1007/bf00350355</a>.'
  ieee: 'R. Mahnken, “A Newton-Multigrid algrithm for elasto-plastic/viscoplastic
    problems,” <i>Computational Mechanics</i>, vol. 15, no. 5, pp. 408–425, 2008,
    doi: <a href="https://doi.org/10.1007/bf00350355">10.1007/bf00350355</a>.'
  mla: Mahnken, Rolf. “A Newton-Multigrid Algrithm for Elasto-Plastic/Viscoplastic
    Problems.” <i>Computational Mechanics</i>, vol. 15, no. 5, Springer Science and
    Business Media LLC, 2008, pp. 408–25, doi:<a href="https://doi.org/10.1007/bf00350355">10.1007/bf00350355</a>.
  short: R. Mahnken, Computational Mechanics 15 (2008) 408–425.
date_created: 2023-05-31T12:26:42Z
date_updated: 2023-05-31T12:27:11Z
department:
- _id: '9'
- _id: '154'
doi: 10.1007/bf00350355
intvolume: '        15'
issue: '5'
keyword:
- Applied Mathematics
- Computational Mathematics
- Computational Theory and Mathematics
- Mechanical Engineering
- Ocean Engineering
- Computational Mechanics
language:
- iso: eng
page: 408-425
publication: Computational Mechanics
publication_identifier:
  issn:
  - 0178-7675
  - 1432-0924
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: A Newton-Multigrid algrithm for elasto-plastic/viscoplastic problems
type: journal_article
user_id: '335'
volume: 15
year: '2008'
...
---
_id: '39947'
author:
- first_name: Margit
  full_name: Rösler, Margit
  id: '37390'
  last_name: Rösler
citation:
  ama: Rösler M. Bessel convolutions on matrix cones. <i>Compositio Mathematica</i>.
    2007;143(03):749-779. doi:<a href="https://doi.org/10.1112/s0010437x06002594">10.1112/s0010437x06002594</a>
  apa: Rösler, M. (2007). Bessel convolutions on matrix cones. <i>Compositio Mathematica</i>,
    <i>143</i>(03), 749–779. <a href="https://doi.org/10.1112/s0010437x06002594">https://doi.org/10.1112/s0010437x06002594</a>
  bibtex: '@article{Rösler_2007, title={Bessel convolutions on matrix cones}, volume={143},
    DOI={<a href="https://doi.org/10.1112/s0010437x06002594">10.1112/s0010437x06002594</a>},
    number={03}, journal={Compositio Mathematica}, publisher={Wiley}, author={Rösler,
    Margit}, year={2007}, pages={749–779} }'
  chicago: 'Rösler, Margit. “Bessel Convolutions on Matrix Cones.” <i>Compositio Mathematica</i>
    143, no. 03 (2007): 749–79. <a href="https://doi.org/10.1112/s0010437x06002594">https://doi.org/10.1112/s0010437x06002594</a>.'
  ieee: 'M. Rösler, “Bessel convolutions on matrix cones,” <i>Compositio Mathematica</i>,
    vol. 143, no. 03, pp. 749–779, 2007, doi: <a href="https://doi.org/10.1112/s0010437x06002594">10.1112/s0010437x06002594</a>.'
  mla: Rösler, Margit. “Bessel Convolutions on Matrix Cones.” <i>Compositio Mathematica</i>,
    vol. 143, no. 03, Wiley, 2007, pp. 749–79, doi:<a href="https://doi.org/10.1112/s0010437x06002594">10.1112/s0010437x06002594</a>.
  short: M. Rösler, Compositio Mathematica 143 (2007) 749–779.
date_created: 2023-01-25T09:55:18Z
date_updated: 2023-01-26T17:47:42Z
department:
- _id: '555'
doi: 10.1112/s0010437x06002594
extern: '1'
intvolume: '       143'
issue: '03'
keyword:
- Algebra and Number Theory
language:
- iso: eng
page: 749-779
publication: Compositio Mathematica
publication_identifier:
  issn:
  - 0010-437X
  - 1570-5846
publication_status: published
publisher: Wiley
status: public
title: Bessel convolutions on matrix cones
type: journal_article
user_id: '93826'
volume: 143
year: '2007'
...
---
_id: '34891'
abstract:
- lang: eng
  text: 'We study the asymptotics conjecture of Malle for dihedral groups Dℓ of order
    2ℓ, where ℓ is an odd prime. We prove the expected lower bound for those groups.
    For the upper bounds we show that there is a connection to class groups of quadratic
    number fields. The asymptotic behavior of those class groups is predicted by the
    Cohen--Lenstra heuristics. Under the assumption of this heuristic we are able
    to prove the expected upper bounds. '
author:
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
citation:
  ama: Klüners J. Asymptotics of number fields and the Cohen–Lenstra heuristics. <i>Journal
    de Théorie des Nombres de Bordeaux</i>. 2006;18(3):607-615. doi:<a href="https://doi.org/10.5802/jtnb.561">10.5802/jtnb.561</a>
  apa: Klüners, J. (2006). Asymptotics of number fields and the Cohen–Lenstra heuristics.
    <i>Journal de Théorie Des Nombres de Bordeaux</i>, <i>18</i>(3), 607–615. <a href="https://doi.org/10.5802/jtnb.561">https://doi.org/10.5802/jtnb.561</a>
  bibtex: '@article{Klüners_2006, title={Asymptotics of number fields and the Cohen–Lenstra
    heuristics}, volume={18}, DOI={<a href="https://doi.org/10.5802/jtnb.561">10.5802/jtnb.561</a>},
    number={3}, journal={Journal de Théorie des Nombres de Bordeaux}, publisher={Cellule
    MathDoc/CEDRAM}, author={Klüners, Jürgen}, year={2006}, pages={607–615} }'
  chicago: 'Klüners, Jürgen. “Asymptotics of Number Fields and the Cohen–Lenstra Heuristics.”
    <i>Journal de Théorie Des Nombres de Bordeaux</i> 18, no. 3 (2006): 607–15. <a
    href="https://doi.org/10.5802/jtnb.561">https://doi.org/10.5802/jtnb.561</a>.'
  ieee: 'J. Klüners, “Asymptotics of number fields and the Cohen–Lenstra heuristics,”
    <i>Journal de Théorie des Nombres de Bordeaux</i>, vol. 18, no. 3, pp. 607–615,
    2006, doi: <a href="https://doi.org/10.5802/jtnb.561">10.5802/jtnb.561</a>.'
  mla: Klüners, Jürgen. “Asymptotics of Number Fields and the Cohen–Lenstra Heuristics.”
    <i>Journal de Théorie Des Nombres de Bordeaux</i>, vol. 18, no. 3, Cellule MathDoc/CEDRAM,
    2006, pp. 607–15, doi:<a href="https://doi.org/10.5802/jtnb.561">10.5802/jtnb.561</a>.
  short: J. Klüners, Journal de Théorie Des Nombres de Bordeaux 18 (2006) 607–615.
date_created: 2022-12-23T09:37:01Z
date_updated: 2023-03-06T09:12:04Z
department:
- _id: '102'
doi: 10.5802/jtnb.561
external_id:
  arxiv:
  - 'math/0512260 '
intvolume: '        18'
issue: '3'
keyword:
- Algebra and Number Theory
language:
- iso: eng
page: 607-615
publication: Journal de Théorie des Nombres de Bordeaux
publication_identifier:
  issn:
  - 1246-7405
publication_status: published
publisher: Cellule MathDoc/CEDRAM
status: public
title: Asymptotics of number fields and the Cohen–Lenstra heuristics
type: journal_article
user_id: '93826'
volume: 18
year: '2006'
...
---
_id: '34892'
abstract:
- lang: eng
  text: 'We prove that the number of quartic S4--extensions of the rationals of given
    discriminant d is $O_\eps(d^{1/2+\eps})$ for all $\eps>0$. For a prime number
    p we derive that the dimension of the space of octahedral modular forms of weight
    1 and conductor p or p² is bounded above by O(p¹/²log(p)²). '
author:
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
citation:
  ama: Klüners J. The number of S₄-fields with given discriminant. <i>Acta Arithmetica</i>.
    2006;122(2):185-194. doi:<a href="https://doi.org/10.4064/aa122-2-3">10.4064/aa122-2-3</a>
  apa: Klüners, J. (2006). The number of S₄-fields with given discriminant. <i>Acta
    Arithmetica</i>, <i>122</i>(2), 185–194. <a href="https://doi.org/10.4064/aa122-2-3">https://doi.org/10.4064/aa122-2-3</a>
  bibtex: '@article{Klüners_2006, title={The number of S₄-fields with given discriminant},
    volume={122}, DOI={<a href="https://doi.org/10.4064/aa122-2-3">10.4064/aa122-2-3</a>},
    number={2}, journal={Acta Arithmetica}, publisher={Institute of Mathematics, Polish
    Academy of Sciences}, author={Klüners, Jürgen}, year={2006}, pages={185–194} }'
  chicago: 'Klüners, Jürgen. “The Number of S₄-Fields with given Discriminant.” <i>Acta
    Arithmetica</i> 122, no. 2 (2006): 185–94. <a href="https://doi.org/10.4064/aa122-2-3">https://doi.org/10.4064/aa122-2-3</a>.'
  ieee: 'J. Klüners, “The number of S₄-fields with given discriminant,” <i>Acta Arithmetica</i>,
    vol. 122, no. 2, pp. 185–194, 2006, doi: <a href="https://doi.org/10.4064/aa122-2-3">10.4064/aa122-2-3</a>.'
  mla: Klüners, Jürgen. “The Number of S₄-Fields with given Discriminant.” <i>Acta
    Arithmetica</i>, vol. 122, no. 2, Institute of Mathematics, Polish Academy of
    Sciences, 2006, pp. 185–94, doi:<a href="https://doi.org/10.4064/aa122-2-3">10.4064/aa122-2-3</a>.
  short: J. Klüners, Acta Arithmetica 122 (2006) 185–194.
date_created: 2022-12-23T09:40:25Z
date_updated: 2023-03-06T09:52:41Z
department:
- _id: '102'
doi: 10.4064/aa122-2-3
external_id:
  arxiv:
  - math/0411484
intvolume: '       122'
issue: '2'
keyword:
- Algebra and Number Theory
language:
- iso: eng
page: 185-194
publication: Acta Arithmetica
publication_identifier:
  issn:
  - 0065-1036
  - 1730-6264
publication_status: published
publisher: Institute of Mathematics, Polish Academy of Sciences
status: public
title: The number of S₄-fields with given discriminant
type: journal_article
user_id: '93826'
volume: 122
year: '2006'
...
---
_id: '34893'
abstract:
- lang: eng
  text: Let K be a global field and O be an order of K. We develop algorithms for
    the computation of the unit group of residue class rings for ideals O in . As
    an application we show how to compute the unit group and the Picard group of O
    provided that we are able to compute the unit group and class group of the maximal
    order O of K.
author:
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
- first_name: Sebastian
  full_name: Pauli, Sebastian
  last_name: Pauli
citation:
  ama: Klüners J, Pauli S. Computing residue class rings and Picard groups of orders.
    <i>Journal of Algebra</i>. 2005;292(1):47-64. doi:<a href="https://doi.org/10.1016/j.jalgebra.2005.04.013">10.1016/j.jalgebra.2005.04.013</a>
  apa: Klüners, J., &#38; Pauli, S. (2005). Computing residue class rings and Picard
    groups of orders. <i>Journal of Algebra</i>, <i>292</i>(1), 47–64. <a href="https://doi.org/10.1016/j.jalgebra.2005.04.013">https://doi.org/10.1016/j.jalgebra.2005.04.013</a>
  bibtex: '@article{Klüners_Pauli_2005, title={Computing residue class rings and Picard
    groups of orders}, volume={292}, DOI={<a href="https://doi.org/10.1016/j.jalgebra.2005.04.013">10.1016/j.jalgebra.2005.04.013</a>},
    number={1}, journal={Journal of Algebra}, publisher={Elsevier BV}, author={Klüners,
    Jürgen and Pauli, Sebastian}, year={2005}, pages={47–64} }'
  chicago: 'Klüners, Jürgen, and Sebastian Pauli. “Computing Residue Class Rings and
    Picard Groups of Orders.” <i>Journal of Algebra</i> 292, no. 1 (2005): 47–64.
    <a href="https://doi.org/10.1016/j.jalgebra.2005.04.013">https://doi.org/10.1016/j.jalgebra.2005.04.013</a>.'
  ieee: 'J. Klüners and S. Pauli, “Computing residue class rings and Picard groups
    of orders,” <i>Journal of Algebra</i>, vol. 292, no. 1, pp. 47–64, 2005, doi:
    <a href="https://doi.org/10.1016/j.jalgebra.2005.04.013">10.1016/j.jalgebra.2005.04.013</a>.'
  mla: Klüners, Jürgen, and Sebastian Pauli. “Computing Residue Class Rings and Picard
    Groups of Orders.” <i>Journal of Algebra</i>, vol. 292, no. 1, Elsevier BV, 2005,
    pp. 47–64, doi:<a href="https://doi.org/10.1016/j.jalgebra.2005.04.013">10.1016/j.jalgebra.2005.04.013</a>.
  short: J. Klüners, S. Pauli, Journal of Algebra 292 (2005) 47–64.
date_created: 2022-12-23T09:41:06Z
date_updated: 2023-03-06T09:55:09Z
department:
- _id: '102'
doi: 10.1016/j.jalgebra.2005.04.013
intvolume: '       292'
issue: '1'
keyword:
- Algebra and Number Theory
language:
- iso: eng
page: 47-64
publication: Journal of Algebra
publication_identifier:
  issn:
  - 0021-8693
publication_status: published
publisher: Elsevier BV
status: public
title: Computing residue class rings and Picard groups of orders
type: journal_article
user_id: '93826'
volume: 292
year: '2005'
...
---
_id: '11931'
abstract:
- lang: eng
  text: The paper is concerned with binaural signal processing for a bimodal human-robot
    interface with hearing and vision. The two microphone signals are processed to
    obtain an enhanced single-channel input signal for the subsequent speech recognizer
    and to localize the acoustic source, an important information for establishing
    a natural human-robot communication. We utilize a robust adaptive algorithm for
    filter-and-sum beamforming (FSB) and extract speaker direction information from
    the resulting FIR filter coefficients. Further, particle filtering is applied
    which conducts a nonlinear Bayesian tracking of speaker movement. Good location
    accuracy can be achieved even in highly reverberant environments. The results
    obtained outperform the conventional generalized cross correlation (GCC) method.
author:
- first_name: Ernst
  full_name: Warsitz, Ernst
  last_name: Warsitz
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Warsitz E, Haeb-Umbach R. Robust speaker direction estimation with particle
    filtering. In: <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>.
    ; 2004:367-370. doi:<a href="https://doi.org/10.1109/MMSP.2004.1436569">10.1109/MMSP.2004.1436569</a>'
  apa: Warsitz, E., &#38; Haeb-Umbach, R. (2004). Robust speaker direction estimation
    with particle filtering. In <i>IEEE Workshop on Multimedia Signal Processing (MMSP
    2004)</i> (pp. 367–370). <a href="https://doi.org/10.1109/MMSP.2004.1436569">https://doi.org/10.1109/MMSP.2004.1436569</a>
  bibtex: '@inproceedings{Warsitz_Haeb-Umbach_2004, title={Robust speaker direction
    estimation with particle filtering}, DOI={<a href="https://doi.org/10.1109/MMSP.2004.1436569">10.1109/MMSP.2004.1436569</a>},
    booktitle={IEEE Workshop on Multimedia Signal Processing (MMSP 2004)}, author={Warsitz,
    Ernst and Haeb-Umbach, Reinhold}, year={2004}, pages={367–370} }'
  chicago: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Robust Speaker Direction Estimation
    with Particle Filtering.” In <i>IEEE Workshop on Multimedia Signal Processing
    (MMSP 2004)</i>, 367–70, 2004. <a href="https://doi.org/10.1109/MMSP.2004.1436569">https://doi.org/10.1109/MMSP.2004.1436569</a>.
  ieee: E. Warsitz and R. Haeb-Umbach, “Robust speaker direction estimation with particle
    filtering,” in <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>,
    2004, pp. 367–370.
  mla: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Robust Speaker Direction Estimation
    with Particle Filtering.” <i>IEEE Workshop on Multimedia Signal Processing (MMSP
    2004)</i>, 2004, pp. 367–70, doi:<a href="https://doi.org/10.1109/MMSP.2004.1436569">10.1109/MMSP.2004.1436569</a>.
  short: 'E. Warsitz, R. Haeb-Umbach, in: IEEE Workshop on Multimedia Signal Processing
    (MMSP 2004), 2004, pp. 367–370.'
date_created: 2019-07-12T05:31:01Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/MMSP.2004.1436569
keyword:
- bimodal human-robot interface
- binaural signal processing
- enhanced single-channel input signal
- filter-and-sum beamforming
- filtering theory
- FIR filter coefficient
- generalized cross correlation method
- microphones
- microphone signal
- nonlinear Bayesian tracking
- particle filtering
- robust adaptive algorithm
- robust speaker direction estimation
- signal processing
- speech enhancement
- speech recognition
- speech recognizer
- user interfaces
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://groups.uni-paderborn.de/nt/pubs/2004/WaHa04.pdf
oa: '1'
page: 367-370
publication: IEEE Workshop on Multimedia Signal Processing (MMSP 2004)
status: public
title: Robust speaker direction estimation with particle filtering
type: conference
user_id: '44006'
year: '2004'
...
---
_id: '39061'
abstract:
- lang: eng
  text: This article presents an approach, which combines theorem proving-based refinement
    with model checking for state based real-time systems. Our verification flow starts
    from UML state diagrams, which are translated to the formal B language and are
    model checked for real-time properties. By means of the B language and a B theorem
    prover, refined state diagrams are verified against their abstract representation.
    The approach is presented by means of the refinement of a digital echo cancellation
    unit.
author:
- first_name: Alexander
  full_name: Krupp, Alexander
  last_name: Krupp
- first_name: Wolfgang
  full_name: Müller, Wolfgang
  id: '16243'
  last_name: Müller
- first_name: Ian
  full_name: Oliver, Ian
  last_name: Oliver
citation:
  ama: 'Krupp A, Müller W, Oliver I. Formal Refinement and Model Checking of An Echo
    Cancellation Unit. In: <i>Proceedings of DATE’04 Designers’ Forum</i>. ; 2004.
    doi:<a href="https://doi.org/10.1109/DATE.2004.1269214">10.1109/DATE.2004.1269214</a>'
  apa: Krupp, A., Müller, W., &#38; Oliver, I. (2004). Formal Refinement and Model
    Checking of An Echo Cancellation Unit. <i>Proceedings of DATE’04 Designers’ Forum</i>.
    Proceedings Design, Automation and Test in Europe Conference and Exhibition. <a
    href="https://doi.org/10.1109/DATE.2004.1269214">https://doi.org/10.1109/DATE.2004.1269214</a>
  bibtex: '@inproceedings{Krupp_Müller_Oliver_2004, place={Paris}, title={Formal Refinement
    and Model Checking of An Echo Cancellation Unit}, DOI={<a href="https://doi.org/10.1109/DATE.2004.1269214">10.1109/DATE.2004.1269214</a>},
    booktitle={Proceedings of DATE’04 Designers’ Forum}, author={Krupp, Alexander
    and Müller, Wolfgang and Oliver, Ian}, year={2004} }'
  chicago: Krupp, Alexander, Wolfgang Müller, and Ian Oliver. “Formal Refinement and
    Model Checking of An Echo Cancellation Unit.” In <i>Proceedings of DATE’04 Designers’
    Forum</i>. Paris, 2004. <a href="https://doi.org/10.1109/DATE.2004.1269214">https://doi.org/10.1109/DATE.2004.1269214</a>.
  ieee: 'A. Krupp, W. Müller, and I. Oliver, “Formal Refinement and Model Checking
    of An Echo Cancellation Unit,” presented at the Proceedings Design, Automation
    and Test in Europe Conference and Exhibition, 2004, doi: <a href="https://doi.org/10.1109/DATE.2004.1269214">10.1109/DATE.2004.1269214</a>.'
  mla: Krupp, Alexander, et al. “Formal Refinement and Model Checking of An Echo Cancellation
    Unit.” <i>Proceedings of DATE’04 Designers’ Forum</i>, 2004, doi:<a href="https://doi.org/10.1109/DATE.2004.1269214">10.1109/DATE.2004.1269214</a>.
  short: 'A. Krupp, W. Müller, I. Oliver, in: Proceedings of DATE’04 Designers’ Forum,
    Paris, 2004.'
conference:
  name: Proceedings Design, Automation and Test in Europe Conference and Exhibition
date_created: 2023-01-24T08:53:26Z
date_updated: 2023-01-24T08:53:31Z
department:
- _id: '672'
doi: 10.1109/DATE.2004.1269214
keyword:
- Echo cancellers
- Logic
- Unified modeling language
- Automata
- Data structures
- Boolean functions
- Electronic design automation and methodology
- Prototypes
- Specification languages
- Constraint theory
language:
- iso: eng
place: Paris
publication: Proceedings of DATE’04 Designers' Forum
publication_identifier:
  isbn:
  - 0-7695-2085-5
status: public
title: Formal Refinement and Model Checking of An Echo Cancellation Unit
type: conference
user_id: '5786'
year: '2004'
...
---
_id: '34896'
abstract:
- lang: eng
  text: We apply class field theory to the computation of the minimal discriminants
    for certain solvable groups. In particular, we apply our techniques to small Frobenius
    groups and all imprimitive degree 8 groups such that the corresponding fields
    have only a degree 2 and no degree 4 subfield.
author:
- first_name: Claus
  full_name: Fieker, Claus
  last_name: Fieker
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
citation:
  ama: Fieker C, Klüners J. Minimal discriminants for fields with small Frobenius
    groups as Galois groups. <i>Journal of Number Theory</i>. 2003;99(2):318-337.
    doi:<a href="https://doi.org/10.1016/s0022-314x(02)00071-9">10.1016/s0022-314x(02)00071-9</a>
  apa: Fieker, C., &#38; Klüners, J. (2003). Minimal discriminants for fields with
    small Frobenius groups as Galois groups. <i>Journal of Number Theory</i>, <i>99</i>(2),
    318–337. <a href="https://doi.org/10.1016/s0022-314x(02)00071-9">https://doi.org/10.1016/s0022-314x(02)00071-9</a>
  bibtex: '@article{Fieker_Klüners_2003, title={Minimal discriminants for fields with
    small Frobenius groups as Galois groups}, volume={99}, DOI={<a href="https://doi.org/10.1016/s0022-314x(02)00071-9">10.1016/s0022-314x(02)00071-9</a>},
    number={2}, journal={Journal of Number Theory}, publisher={Elsevier BV}, author={Fieker,
    Claus and Klüners, Jürgen}, year={2003}, pages={318–337} }'
  chicago: 'Fieker, Claus, and Jürgen Klüners. “Minimal Discriminants for Fields with
    Small Frobenius Groups as Galois Groups.” <i>Journal of Number Theory</i> 99,
    no. 2 (2003): 318–37. <a href="https://doi.org/10.1016/s0022-314x(02)00071-9">https://doi.org/10.1016/s0022-314x(02)00071-9</a>.'
  ieee: 'C. Fieker and J. Klüners, “Minimal discriminants for fields with small Frobenius
    groups as Galois groups,” <i>Journal of Number Theory</i>, vol. 99, no. 2, pp.
    318–337, 2003, doi: <a href="https://doi.org/10.1016/s0022-314x(02)00071-9">10.1016/s0022-314x(02)00071-9</a>.'
  mla: Fieker, Claus, and Jürgen Klüners. “Minimal Discriminants for Fields with Small
    Frobenius Groups as Galois Groups.” <i>Journal of Number Theory</i>, vol. 99,
    no. 2, Elsevier BV, 2003, pp. 318–37, doi:<a href="https://doi.org/10.1016/s0022-314x(02)00071-9">10.1016/s0022-314x(02)00071-9</a>.
  short: C. Fieker, J. Klüners, Journal of Number Theory 99 (2003) 318–337.
date_created: 2022-12-23T09:53:23Z
date_updated: 2023-03-06T09:19:16Z
department:
- _id: '102'
doi: 10.1016/s0022-314x(02)00071-9
intvolume: '        99'
issue: '2'
keyword:
- Algebra and Number Theory
language:
- iso: eng
page: 318-337
publication: Journal of Number Theory
publication_identifier:
  issn:
  - 0022-314X
publication_status: published
publisher: Elsevier BV
status: public
title: Minimal discriminants for fields with small Frobenius groups as Galois groups
type: journal_article
user_id: '93826'
volume: 99
year: '2003'
...
---
_id: '45423'
author:
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
citation:
  ama: Mahnken R. Improved implementation of an algorithm for non-linear isotropic/kinematic
    hardening in elastoplasticity. <i>Communications in Numerical Methods in Engineering</i>.
    2002;15(10):745-754. doi:<a href="https://doi.org/10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r">10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r</a>
  apa: Mahnken, R. (2002). Improved implementation of an algorithm for non-linear
    isotropic/kinematic hardening in elastoplasticity. <i>Communications in Numerical
    Methods in Engineering</i>, <i>15</i>(10), 745–754. <a href="https://doi.org/10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r">https://doi.org/10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r</a>
  bibtex: '@article{Mahnken_2002, title={Improved implementation of an algorithm for
    non-linear isotropic/kinematic hardening in elastoplasticity}, volume={15}, DOI={<a
    href="https://doi.org/10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r">10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r</a>},
    number={10}, journal={Communications in Numerical Methods in Engineering}, publisher={Wiley},
    author={Mahnken, Rolf}, year={2002}, pages={745–754} }'
  chicago: 'Mahnken, Rolf. “Improved Implementation of an Algorithm for Non-Linear
    Isotropic/Kinematic Hardening in Elastoplasticity.” <i>Communications in Numerical
    Methods in Engineering</i> 15, no. 10 (2002): 745–54. <a href="https://doi.org/10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r">https://doi.org/10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r</a>.'
  ieee: 'R. Mahnken, “Improved implementation of an algorithm for non-linear isotropic/kinematic
    hardening in elastoplasticity,” <i>Communications in Numerical Methods in Engineering</i>,
    vol. 15, no. 10, pp. 745–754, 2002, doi: <a href="https://doi.org/10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r">10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r</a>.'
  mla: Mahnken, Rolf. “Improved Implementation of an Algorithm for Non-Linear Isotropic/Kinematic
    Hardening in Elastoplasticity.” <i>Communications in Numerical Methods in Engineering</i>,
    vol. 15, no. 10, Wiley, 2002, pp. 745–54, doi:<a href="https://doi.org/10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r">10.1002/(sici)1099-0887(199910)15:10&#60;745::aid-cnm288&#62;3.0.co;2-r</a>.
  short: R. Mahnken, Communications in Numerical Methods in Engineering 15 (2002)
    745–754.
date_created: 2023-05-31T12:14:42Z
date_updated: 2023-05-31T12:15:12Z
department:
- _id: '9'
- _id: '154'
doi: 10.1002/(sici)1099-0887(199910)15:10<745::aid-cnm288>3.0.co;2-r
intvolume: '        15'
issue: '10'
keyword:
- Applied Mathematics
- Computational Theory and Mathematics
- General Engineering
- Modeling and Simulation
- Software
language:
- iso: eng
page: 745-754
publication: Communications in Numerical Methods in Engineering
publication_identifier:
  issn:
  - 1069-8299
  - 1099-0887
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Improved implementation of an algorithm for non-linear isotropic/kinematic
  hardening in elastoplasticity
type: journal_article
user_id: '335'
volume: 15
year: '2002'
...
---
_id: '45417'
author:
- first_name: C.
  full_name: Döbert, C.
  last_name: Döbert
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
- first_name: E.
  full_name: Stein, E.
  last_name: Stein
citation:
  ama: Döbert C, Mahnken R, Stein E. Numerical simulation of interface debonding with
    a combined damage/friction constitutive model. <i>Computational Mechanics</i>.
    2002;25(5):456-467. doi:<a href="https://doi.org/10.1007/s004660050493">10.1007/s004660050493</a>
  apa: Döbert, C., Mahnken, R., &#38; Stein, E. (2002). Numerical simulation of interface
    debonding with a combined damage/friction constitutive model. <i>Computational
    Mechanics</i>, <i>25</i>(5), 456–467. <a href="https://doi.org/10.1007/s004660050493">https://doi.org/10.1007/s004660050493</a>
  bibtex: '@article{Döbert_Mahnken_Stein_2002, title={Numerical simulation of interface
    debonding with a combined damage/friction constitutive model}, volume={25}, DOI={<a
    href="https://doi.org/10.1007/s004660050493">10.1007/s004660050493</a>}, number={5},
    journal={Computational Mechanics}, publisher={Springer Science and Business Media
    LLC}, author={Döbert, C. and Mahnken, Rolf and Stein, E.}, year={2002}, pages={456–467}
    }'
  chicago: 'Döbert, C., Rolf Mahnken, and E. Stein. “Numerical Simulation of Interface
    Debonding with a Combined Damage/Friction Constitutive Model.” <i>Computational
    Mechanics</i> 25, no. 5 (2002): 456–67. <a href="https://doi.org/10.1007/s004660050493">https://doi.org/10.1007/s004660050493</a>.'
  ieee: 'C. Döbert, R. Mahnken, and E. Stein, “Numerical simulation of interface debonding
    with a combined damage/friction constitutive model,” <i>Computational Mechanics</i>,
    vol. 25, no. 5, pp. 456–467, 2002, doi: <a href="https://doi.org/10.1007/s004660050493">10.1007/s004660050493</a>.'
  mla: Döbert, C., et al. “Numerical Simulation of Interface Debonding with a Combined
    Damage/Friction Constitutive Model.” <i>Computational Mechanics</i>, vol. 25,
    no. 5, Springer Science and Business Media LLC, 2002, pp. 456–67, doi:<a href="https://doi.org/10.1007/s004660050493">10.1007/s004660050493</a>.
  short: C. Döbert, R. Mahnken, E. Stein, Computational Mechanics 25 (2002) 456–467.
date_created: 2023-05-31T12:04:03Z
date_updated: 2023-05-31T12:04:35Z
department:
- _id: '9'
- _id: '154'
doi: 10.1007/s004660050493
intvolume: '        25'
issue: '5'
keyword:
- Applied Mathematics
- Computational Mathematics
- Computational Theory and Mathematics
- Mechanical Engineering
- Ocean Engineering
- Computational Mechanics
language:
- iso: eng
page: 456-467
publication: Computational Mechanics
publication_identifier:
  issn:
  - 0178-7675
  - 1432-0924
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Numerical simulation of interface debonding with a combined damage/friction
  constitutive model
type: journal_article
user_id: '335'
volume: 25
year: '2002'
...
---
_id: '45427'
abstract:
- lang: eng
  text: '<jats:p>In this work a gradient‐based optimization method is applied in order
    to determine material parameters for a viscoplastic model with dynamic yield surface
    coupled to damage as presented in 1997. To this end a sensitivity analysis consistent
    with the integration scheme presented previously is performed in a systematic
    manner, both for strain and stress controlled experiments. The algorithm is tested
    in two numerical examples: first, simulated data are used, in order to re‐obtain
    parameters for the case of damage under monotonic loading. In the second example
    material parameters are obtained based on experimental data for lcf‐testing of
    an austenetic stainless steel, thus showing a very good agreement with respect
    to hardening, rate and damage effects.</jats:p>'
author:
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
- first_name: Magnus
  full_name: Johansson, Magnus
  last_name: Johansson
- first_name: Kenneth
  full_name: Runesson, Kenneth
  last_name: Runesson
citation:
  ama: Mahnken R, Johansson M, Runesson K. Parameter estimation for a viscoplastic
    damage model using a gradient‐based optimization algorithm. <i>Engineering Computations</i>.
    2002;15(7):925-955. doi:<a href="https://doi.org/10.1108/02644409810236920">10.1108/02644409810236920</a>
  apa: Mahnken, R., Johansson, M., &#38; Runesson, K. (2002). Parameter estimation
    for a viscoplastic damage model using a gradient‐based optimization algorithm.
    <i>Engineering Computations</i>, <i>15</i>(7), 925–955. <a href="https://doi.org/10.1108/02644409810236920">https://doi.org/10.1108/02644409810236920</a>
  bibtex: '@article{Mahnken_Johansson_Runesson_2002, title={Parameter estimation for
    a viscoplastic damage model using a gradient‐based optimization algorithm}, volume={15},
    DOI={<a href="https://doi.org/10.1108/02644409810236920">10.1108/02644409810236920</a>},
    number={7}, journal={Engineering Computations}, publisher={Emerald}, author={Mahnken,
    Rolf and Johansson, Magnus and Runesson, Kenneth}, year={2002}, pages={925–955}
    }'
  chicago: 'Mahnken, Rolf, Magnus Johansson, and Kenneth Runesson. “Parameter Estimation
    for a Viscoplastic Damage Model Using a Gradient‐based Optimization Algorithm.”
    <i>Engineering Computations</i> 15, no. 7 (2002): 925–55. <a href="https://doi.org/10.1108/02644409810236920">https://doi.org/10.1108/02644409810236920</a>.'
  ieee: 'R. Mahnken, M. Johansson, and K. Runesson, “Parameter estimation for a viscoplastic
    damage model using a gradient‐based optimization algorithm,” <i>Engineering Computations</i>,
    vol. 15, no. 7, pp. 925–955, 2002, doi: <a href="https://doi.org/10.1108/02644409810236920">10.1108/02644409810236920</a>.'
  mla: Mahnken, Rolf, et al. “Parameter Estimation for a Viscoplastic Damage Model
    Using a Gradient‐based Optimization Algorithm.” <i>Engineering Computations</i>,
    vol. 15, no. 7, Emerald, 2002, pp. 925–55, doi:<a href="https://doi.org/10.1108/02644409810236920">10.1108/02644409810236920</a>.
  short: R. Mahnken, M. Johansson, K. Runesson, Engineering Computations 15 (2002)
    925–955.
date_created: 2023-05-31T12:20:54Z
date_updated: 2023-05-31T12:21:15Z
department:
- _id: '9'
- _id: '154'
doi: 10.1108/02644409810236920
intvolume: '        15'
issue: '7'
keyword:
- Computational Theory and Mathematics
- Computer Science Applications
- General Engineering
- Software
language:
- iso: eng
page: 925-955
publication: Engineering Computations
publication_identifier:
  issn:
  - 0264-4401
publication_status: published
publisher: Emerald
quality_controlled: '1'
status: public
title: Parameter estimation for a viscoplastic damage model using a gradient‐based
  optimization algorithm
type: journal_article
user_id: '335'
volume: 15
year: '2002'
...
---
_id: '34897'
abstract:
- lang: eng
  text: This paper announces the creation of a database for number fields. It describes
    the contents and the methods of access, indicates the origin of the polynomials,
    and formulates the aims of this collection of fields.
author:
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
- first_name: Gunter
  full_name: Malle, Gunter
  last_name: Malle
citation:
  ama: Klüners J, Malle G. A Database for Field Extensions of the Rationals. <i>LMS
    Journal of Computation and Mathematics</i>. 2001;4:182-196. doi:<a href="https://doi.org/10.1112/s1461157000000851">10.1112/s1461157000000851</a>
  apa: Klüners, J., &#38; Malle, G. (2001). A Database for Field Extensions of the
    Rationals. <i>LMS Journal of Computation and Mathematics</i>, <i>4</i>, 182–196.
    <a href="https://doi.org/10.1112/s1461157000000851">https://doi.org/10.1112/s1461157000000851</a>
  bibtex: '@article{Klüners_Malle_2001, title={A Database for Field Extensions of
    the Rationals}, volume={4}, DOI={<a href="https://doi.org/10.1112/s1461157000000851">10.1112/s1461157000000851</a>},
    journal={LMS Journal of Computation and Mathematics}, publisher={Wiley}, author={Klüners,
    Jürgen and Malle, Gunter}, year={2001}, pages={182–196} }'
  chicago: 'Klüners, Jürgen, and Gunter Malle. “A Database for Field Extensions of
    the Rationals.” <i>LMS Journal of Computation and Mathematics</i> 4 (2001): 182–96.
    <a href="https://doi.org/10.1112/s1461157000000851">https://doi.org/10.1112/s1461157000000851</a>.'
  ieee: 'J. Klüners and G. Malle, “A Database for Field Extensions of the Rationals,”
    <i>LMS Journal of Computation and Mathematics</i>, vol. 4, pp. 182–196, 2001,
    doi: <a href="https://doi.org/10.1112/s1461157000000851">10.1112/s1461157000000851</a>.'
  mla: Klüners, Jürgen, and Gunter Malle. “A Database for Field Extensions of the
    Rationals.” <i>LMS Journal of Computation and Mathematics</i>, vol. 4, Wiley,
    2001, pp. 182–96, doi:<a href="https://doi.org/10.1112/s1461157000000851">10.1112/s1461157000000851</a>.
  short: J. Klüners, G. Malle, LMS Journal of Computation and Mathematics 4 (2001)
    182–196.
date_created: 2022-12-23T09:56:22Z
date_updated: 2023-03-02T09:53:08Z
department:
- _id: '102'
doi: 10.1112/s1461157000000851
external_id:
  arxiv:
  - math/0102232
intvolume: '         4'
keyword:
- Computational Theory and Mathematics
- General Mathematics
language:
- iso: eng
page: 182-196
publication: LMS Journal of Computation and Mathematics
publication_identifier:
  issn:
  - 1461-1570
publication_status: published
publisher: Wiley
status: public
title: A Database for Field Extensions of the Rationals
type: journal_article
user_id: '93826'
volume: 4
year: '2001'
...
---
_id: '34900'
abstract:
- lang: eng
  text: We describe methods for the computation of Galois groups of univariate polynomials
    over the rationals which we have implemented up to degree 15. These methods are
    based on Stauduhar’s algorithm. All computations are done in unramified p -adic
    extensions. For imprimitive groups we give an improvement using subfields. In
    the primitive case we use known subgroups of the Galois group together with a
    combination of Stauduhar’s method and the absolute resolvent method.
author:
- first_name: Katharina
  full_name: Geissler, Katharina
  last_name: Geissler
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
citation:
  ama: Geissler K, Klüners J. Galois Group Computation for Rational Polynomials. <i>Journal
    of Symbolic Computation</i>. 2000;30(6):653-674. doi:<a href="https://doi.org/10.1006/jsco.2000.0377">10.1006/jsco.2000.0377</a>
  apa: Geissler, K., &#38; Klüners, J. (2000). Galois Group Computation for Rational
    Polynomials. <i>Journal of Symbolic Computation</i>, <i>30</i>(6), 653–674. <a
    href="https://doi.org/10.1006/jsco.2000.0377">https://doi.org/10.1006/jsco.2000.0377</a>
  bibtex: '@article{Geissler_Klüners_2000, title={Galois Group Computation for Rational
    Polynomials}, volume={30}, DOI={<a href="https://doi.org/10.1006/jsco.2000.0377">10.1006/jsco.2000.0377</a>},
    number={6}, journal={Journal of Symbolic Computation}, publisher={Elsevier BV},
    author={Geissler, Katharina and Klüners, Jürgen}, year={2000}, pages={653–674}
    }'
  chicago: 'Geissler, Katharina, and Jürgen Klüners. “Galois Group Computation for
    Rational Polynomials.” <i>Journal of Symbolic Computation</i> 30, no. 6 (2000):
    653–74. <a href="https://doi.org/10.1006/jsco.2000.0377">https://doi.org/10.1006/jsco.2000.0377</a>.'
  ieee: 'K. Geissler and J. Klüners, “Galois Group Computation for Rational Polynomials,”
    <i>Journal of Symbolic Computation</i>, vol. 30, no. 6, pp. 653–674, 2000, doi:
    <a href="https://doi.org/10.1006/jsco.2000.0377">10.1006/jsco.2000.0377</a>.'
  mla: Geissler, Katharina, and Jürgen Klüners. “Galois Group Computation for Rational
    Polynomials.” <i>Journal of Symbolic Computation</i>, vol. 30, no. 6, Elsevier
    BV, 2000, pp. 653–74, doi:<a href="https://doi.org/10.1006/jsco.2000.0377">10.1006/jsco.2000.0377</a>.
  short: K. Geissler, J. Klüners, Journal of Symbolic Computation 30 (2000) 653–674.
date_created: 2022-12-23T09:58:16Z
date_updated: 2023-03-06T09:58:06Z
department:
- _id: '102'
doi: 10.1006/jsco.2000.0377
intvolume: '        30'
issue: '6'
keyword:
- Computational Mathematics
- Algebra and Number Theory
language:
- iso: eng
page: 653-674
publication: Journal of Symbolic Computation
publication_identifier:
  issn:
  - 0747-7171
publication_status: published
publisher: Elsevier BV
status: public
title: Galois Group Computation for Rational Polynomials
type: journal_article
user_id: '93826'
volume: 30
year: '2000'
...
---
_id: '34901'
abstract:
- lang: eng
  text: Let L = K(α) be an Abelian extension of degree n of a number field K, given
    by the minimal polynomial of α over K. We describe an algorithm for computing
    the local Artin map associated with the extension L / K at a finite or infinite
    prime v of K. We apply this algorithm to decide if a nonzero a ∈ K is a norm from
    L, assuming that L / K is cyclic.
author:
- first_name: Vincenzo
  full_name: Acciaro, Vincenzo
  last_name: Acciaro
- first_name: Jürgen
  full_name: Klüners, Jürgen
  id: '21202'
  last_name: Klüners
citation:
  ama: Acciaro V, Klüners J. Computing Local Artin Maps, and Solvability of Norm Equations.
    <i>Journal of Symbolic Computation</i>. 2000;30(3):239-252. doi:<a href="https://doi.org/10.1006/jsco.2000.0361">10.1006/jsco.2000.0361</a>
  apa: Acciaro, V., &#38; Klüners, J. (2000). Computing Local Artin Maps, and Solvability
    of Norm Equations. <i>Journal of Symbolic Computation</i>, <i>30</i>(3), 239–252.
    <a href="https://doi.org/10.1006/jsco.2000.0361">https://doi.org/10.1006/jsco.2000.0361</a>
  bibtex: '@article{Acciaro_Klüners_2000, title={Computing Local Artin Maps, and Solvability
    of Norm Equations}, volume={30}, DOI={<a href="https://doi.org/10.1006/jsco.2000.0361">10.1006/jsco.2000.0361</a>},
    number={3}, journal={Journal of Symbolic Computation}, publisher={Elsevier BV},
    author={Acciaro, Vincenzo and Klüners, Jürgen}, year={2000}, pages={239–252} }'
  chicago: 'Acciaro, Vincenzo, and Jürgen Klüners. “Computing Local Artin Maps, and
    Solvability of Norm Equations.” <i>Journal of Symbolic Computation</i> 30, no.
    3 (2000): 239–52. <a href="https://doi.org/10.1006/jsco.2000.0361">https://doi.org/10.1006/jsco.2000.0361</a>.'
  ieee: 'V. Acciaro and J. Klüners, “Computing Local Artin Maps, and Solvability of
    Norm Equations,” <i>Journal of Symbolic Computation</i>, vol. 30, no. 3, pp. 239–252,
    2000, doi: <a href="https://doi.org/10.1006/jsco.2000.0361">10.1006/jsco.2000.0361</a>.'
  mla: Acciaro, Vincenzo, and Jürgen Klüners. “Computing Local Artin Maps, and Solvability
    of Norm Equations.” <i>Journal of Symbolic Computation</i>, vol. 30, no. 3, Elsevier
    BV, 2000, pp. 239–52, doi:<a href="https://doi.org/10.1006/jsco.2000.0361">10.1006/jsco.2000.0361</a>.
  short: V. Acciaro, J. Klüners, Journal of Symbolic Computation 30 (2000) 239–252.
date_created: 2022-12-23T09:58:48Z
date_updated: 2023-03-06T09:57:34Z
department:
- _id: '102'
doi: 10.1006/jsco.2000.0361
intvolume: '        30'
issue: '3'
keyword:
- Computational Mathematics
- Algebra and Number Theory
language:
- iso: eng
page: 239-252
publication: Journal of Symbolic Computation
publication_identifier:
  issn:
  - 0747-7171
publication_status: published
publisher: Elsevier BV
status: public
title: Computing Local Artin Maps, and Solvability of Norm Equations
type: journal_article
user_id: '93826'
volume: 30
year: '2000'
...