photo of Steffen Koenig

Steffen Koenig

Universität Stuttgart
Institut für Algebra und Zahlentheorie
Pfaffenwaldring 57
D-70569 Stuttgart
Germany

Office hour: by appointment.

Email: click here
Phone: ++49 (0)711 685 65297
Fax: ++49 (0)711 685 65322
Office: 7.519

CURRENT / RECENT TEACHING:

  • Wintersemester 2024/25:
    Lineare Algebra und Analytische Geometrie I.
  • Sommersemester 2024:
    Higher structures in representation theory 2.
  • Wintersemester 2023/24:
    Higher structures in representation theory 1.
  • Sommersemester 2023: Forschungssemester.
  • Wintersemester 2022/23:
    Algebra.
  • Sommersemester 2022:
    Lineare Algebra und Analytische Geometrie II.
  • Wintersemester 2021/22:
    Lineare Algebra und Analytische Geometrie I.
  • Sommersemester 2021:
    Representation Theory of Algebras II.
    Masterseminar Darstellungstheorie / Homologische Algebra.
  • Wintersemester 2020/21:
    Representation Theory of Algebras I.
    Hauptseminar Algebraische Zahlentheorie.
  • Sommersemester 2020:
    Algebra II.
    Zahlentheorie.
    Seminar Mengenlehre.
  • Wintersemester 2019/20:
    Algebra.
    Seminar Kategorien und Äquivalenzen.
  • Sommersemester 2019:
    Representation Theory and Knot Invariants.
  • Wintersemester 2018/19: Forschungssemester.
  • Sommersemester 2018:
    • Vorlesung Lineare Algebra und Analytische Geometrie II.
    Seminar Triangulierte Kategorien.
  • Wintersemester 2017/18:
    Vorlesung Lineare Algebra und Analytische Geometrie I.
    Vorlesung Triangulierte Kategorien.
  • Sommersemester 2017: Vorlesung Darstellungstheorie und homologische Algebra II.
    Masterseminar Dominante Dimension.
    Proseminar Angewandte Lineare Algebra.
  • Wintersemester 2016/17: Vorlesung Darstellungstheorie und homologische Algebra I.
  • Sommersemester 2016: Vorlesung Lineare Algebra und Analytische Geometrie 2.
    Hauptseminar Algebra.
    Masterseminar Frobeniusalgebren.
  • Wintersemester 2015/16: Vorlesung Höhere Mathematik 3 für Elektrotechniker, Kybernetiker, Mechatroniker und Physiker.
  • Sommersemester 2015: Vorlesung Höhere Mathematik 2 für Elektrotechniker, Kybernetiker, Mechatroniker und Physiker.
  • Wintersemester 2014/15: Vorlesung Höhere Mathematik 1 für Elektrotechniker, Kybernetiker, Mechatroniker und Physiker.
  • Sommersemester 2014: Forschungssemester.
  • Wintersemester 2013/14: Vorlesung Schulmathematik vom höheren Standpunkt.
    Seminar Zahlentheorie.
  • Sommersemester 2013: Vorlesung Zahlentheorie II.
  • Sommersemester 2013: Vorlesung Halbeinfache komplexe Lie-Algebren und Darstellungstheorie II.
  • Wintersemester 2012/13: Vorlesung Zahlentheorie.
  • Wintersemester 2012/13: Vorlesung Halbeinfache komplexe Lie-Algebren und Darstellungstheorie.
  • Sommersemester 2012: Vorlesung Lineare Algebra und Analytische Geometrie 2:
    Webseite zu Vorlesung und Übungen (Okuson-System).
    Die Anmeldung zum Online-Forum findet sich unter Ilias.
  • Wintersemester 2011/12: Vorlesung Lineare Algebra und Analytische Geometrie 1:
    Webseite zu Vorlesung und Übungen (Okuson-System).
    Die Anmeldung zum Online-Forum findet sich unter Ilias.
  • Sommersemester 2011: Vorlesung Algebra
  • Wintersemester 2010/11: Vorlesung Darstellungstheorie
  • CURRENT / FORTHCOMING EVENTS AND ACTIVITIES:

    Oberseminare am IAZ

    Network on silting theory

    NEW:
    ARTIG 2, June 23 / 24, 2023.
    Postmodern Ringel duality, bocses and contramodules, April 3 to 6, 2023.
    Orthogonal modules and homological dimensions, March 23, 24 and 27, 2023. Online workshop.



    RECENT:
    Homological methods in representation theory - a conference in honour of Lidia Angeleri Hügel, October 3 -- 8, 2021, Fraueninsel, Chiemsee.
    Two weeks of silting - summer school and conference, July 30 - August 9, 2019.
    First Workshop of the South West Algebra Network SWAN. September 17-18, 2018, University of Stuttgart.
    Algebraic Representation Theory. A workshop in honour of Richard Dipper on the occasion of his retirement. July 23-25, 2018, University of Stuttgart.
    Workshop on Algebra, September 16, 2017, Capital Normal University, Beijing
    Triangulated Categories in Algebra, Geometry and Topology, March 14-18, 2016, University of Stuttgart
    Workshop on Brauer Graph Algebras, March 21-23, 2016, University of Stuttgart
    Follow-up workshop to Trimester Programme 'On the interaction of representation theory with geometry and combinatorics', Hausdorff research institute for mathematics, Bonn, March 22 to April 2, 2015.
    Including: Conference, March 27 to March 31, 2015.
    Spring school on Kac conjectures. Wuppertal. March 2015.
    Workshop on diagram algebras, Stuttgart, September 8 to 12, 2014.
    Annual meeting of the DFG priority programme on algorithmic and experimental methods in algebra, geometry and number theory, SPP 1489. March 3 to 7, 2014 (Evangelische Akademie, Bad Boll).
    Mini-Workshop: Localising and Tilting in Abelian and Triangulated Categories, Oberwolfach, May 12 to 18, 2013.
    Annual meeting of the DFG priority programme on representation theory, SPP 1388. March 25 to 28, 2013 (Evangelische Akademie, Bad Boll).
    Workshop on Gradings and Decomposition Numbers. September 24 to 28, 2012.
    ICRA 2012. August 8 to 17, 2012, Bielefeld.
    Workshop on Group Rings and Related Topics. June 25 to 29, 2012.
    Workshop on t-structures and related topics, July 7 to 9, 2011.
    Workshop in Bonn, 2011.
    HIM Trimester program on the interaction of representation theory with geometry and combinatorics, January to April 2011.
    Winter school in Bonn, 2011.
    Darstellungstheorietage 2010, in Stuttgart.

    Representation theory of algebras and algebraic Lie theory - an academic interchange network with Chinese partners, funded by Rheinenergie-Stiftung
    Workshop on Representations and Cohomology, March 1-6, 2009
    Summer school on Geometry of Representations, July 26 to August 1, 2009
    Conference Perspectives in Representation Theory, September 27 to October 3, 2009

    See here for a list of further events and activities
    .
  • TEACHING :
    See above for current teaching.
    Teaching in Köln (2005 to 2010)
  • ORGANISING, EDITING, ...:
    2002 to 2013: Editorial Adviser of the London Mathematical Society (Bulletin, Journal and Proceedings of the LMS).
    2008-2017: Member of the Editorial Board of Journal of Algebra and its Applications.
    2014-2015: Member of the Advisory Board of Journal of Algebra and its Applications.
    Starting in 2013: Member of the Editorial Board of Journal of Pure and Applied Algebra (not taking over new submissions any more).
    2015-2020: Member of the Editorial Board of Algebras and Representation Theory.

    Editor (jointly with Michael Butler and Jan-Erik Roos) of the proceedings of 'Representation Theory and its Applications' (Uppsala 2004), Journal of Algebra and its Applications, volume 4 (2005), issues 5 and 6.
    Editor (jointly with Alexander Zimmermann) of two issues of 'Algebras and Representation Theory' dedicated to Klaus Roggenkamp on the occasion of his sixtieth birthday, volume 3, issue 4 (2000) and volume 4, issue 1 (2001).

    Co-ordinator (1/04-9/05) and deputy co-ordinator (10/05 - 12/06) of the academic interchange network 'Algebras, Representations and Applications', funded by the Leverhulme Trust.
    Co-ordinator of the AsiaLink network 'Algebras and Representations in China and Europe', funded by EU 2002-5.

  • RESEARCH :
    Publications
    Book
    Recent talks
  • BRIEF CV : Born in 1961.
    Diploma in mathematics 1986, University of Stuttgart.
    Zivildienst (military service without weapons) 1986-1988.
    PhD in mathematics 1988, University of Stuttgart.
    Habilitation and venia legendi in mathematics 1993, University of Stuttgart.
    1988 - 1995 Research positions and research fellowships at the Universities of Stuttgart, Bielefeld and Antwerp.
    1995 Maier-Leibnitz prize.
    1995 - 2000 Heisenberg fellowship, Privatdozent at Bielefeld.
    2000 - 2005 Professor and chair of pure mathematics, University of Leicester.
    2004 Received offers for professorships at Universität zu Köln and at University of Warwick.
    2004/5 Leverhulme research fellowship.
    2005 - 2010 Professor in Köln.
    Since 2010 Professor in Stuttgart.
  • PICTURES :
    • Data protection information Impressum (legal notice)