Ellen Henke, Home Page

I am an assistant professor in the Department of Mathematical Sciences at the University of Copenhagen, and I am part of the Centre for Symmetry and Deformation. My CV can be found here.

Originally, I am a group theorist, but work at the intersection between group theory and homotopy theory, since my main research interest are saturated fusion systems. These are categories modelling the p-local structure of finite groups and possess p-completed classifying spaces similar to the ones of finite groups.

I organize the algebra seminar in Copenhagen. For announcements of the talks see our calendar. Furthermore, I organized a masterclass on fusion systems and p-local group theory in July 2011 and a masterclass on classification problems in groups and fusion systems in June 2013.

Contact Informations

Department of Mathematical Sciences
Universitetsparken 5
2100 København Ø


Publications and preprints

  1. Recognizing SL2(q) in fusion systems. J. Group Theory, 13 (2010), no. 5, 679-702.
  2. Minimal fusion systems with a unique maximal parabolic. Journal of Algebra, 333 (2011), no. 1, 318-367 doi.
  3. Products in Fusion Systems. Journal of Algebra, 376 (2013), 300-319 doi.
  4. (with Dave Benson and Jesper Grodal) Group cohomology and control of p-fusion. 15 pages. To appear in Invent. Math. arXiv:1210.1564.
  5. A characterization of saturated fusion systems over abelian 2-groups. Preprint 3 pages. arXiv:1305.4139.

Work in progress

    Minimal non-solvable fusion systems (a long classification project).

Older things

  1. Minimal Fusion Systems, PhD thesis supervised by S. Shpectorov.
  2. Saturated Fusion Systems of Essential Rank 1, MPhil thesis (Qualifying thesis) supervised by S. Shpectorov.
  3. Zur Struktur von (Σ35)-Amalgamen, diploma thesis ("Diplomarbeit") supervised by B. Stellmacher.