Seminar Sophus Lie

Seminar Sophus Lie

October 5-6, 2012 at TU Darmstadt

Organizers: Joachim Hilgert (Paderborn), Karl-Hermann Neeb (Erlangen)


  • Helge Glöckner (Paderborn)
  • Karl-Heinrich Hofmann (Darmstadt)
  • Johannes Hübschmann (Lille)
  • Klaus Keimel (Darmstadt)
  • Bernhard Krötz (Hannover)
  • Jimmie Lawson (Baton Rouge)
  • Alexander Schmeding (Paderborn)
  • Konrad Schmüdgen (Leipzig)
  • Karlheinz Spindler (Wiesbaden)
  • Karl Strambach (Erlangen)
  • Günter Ziegler (Berlin)

The conference poster on the right is available for download here.


The full program including the abstracts of the talks can be downloaded here.

Friday, October 5

Time Speaker Title
09:00 – 09:45 Jimmie Lawson The Unfolding Story of the Matrix Geometric Mean
Coffee break
10:15 – 11:00 Johannes Hübschmann A step towards Lie's dream
11:15 – 12:00 Karl-Heinrich Hofmann Homogeneous spaces of compact groups
Lunch & Coffee
15:15 – 15:30 Burkhard Kümmerer Opening of the Festkolloquium by the dean of the mathematics department at TU Darmstadt
15:30 – 16:15 Klaus Keimel Begegnungen mit Karl Heinrich Hofmann und seiner Mathematik (part of the Festkolloquium)
16:45 – 17:30 Günter Ziegler Das ist doch keine Kunst – Mathematik-Bilder von Leonardo bis Hofmann (part of the Festkolloquium)

The above afternoon session is also the so-called Festkolloquium on the occasion of the 80th birthday of Karl Heinrich Hofmann.

Before the Colloquium there will be a small get-together with coffee at 13:30 in room S215 244. Moreover, in the evening there is a reception and dinner at 18:30 at the “Hessisches Staatsarchiv Darmstadt” (Karolinenplatz 3).

Saturday, October 6

Time Speaker Title
09:00 – 09:45 Konrad Schmüdgen Induced representations of *-algebras in Hilbert space
10:15 – 11:00 Bernhard Krötz Ext-groups of Harish-Chandra modules
11:15 – 12:00 Helge Glöckner Regularity properties of infinite-dimensional Lie groups
14:15 – 15:00 Karlheinz Spindler On Theta-congruent numbers, rational squares in arithmetic progressions, concordant forms and elliptic curves
Coffee break
15:15 – 16:00 Alexander Schmeding The Lie group structure of the diffeomorphism group of a (reduced) orbifold
16:15 – 17:00 Karl Strambach Imprimitive transformation groups with prescribed action on the blocks