Hauptseminar Geometrie

The Auslander Conjecture states that all discrete groups acting properly and cocompactly on R^n by affine transformations should be virtually solvable. In 1983, Margulis constructed the first examples of proper (but not cocompact) affine actions of nonabelian free groups. Until now it seems that all known examples of groups admitting irreducible proper affine actions were virtually solvable or virtually free. I will explain how any right-angled Coxeter group in k generators admits a proper affine action on R^{k(k-1)/2}

This is joint work with J. Danciger and F. Guéritaud.

Donnerstag, den 17. Dezember 2015 um 12:00 Uhr, in INF288, HS5 Donnerstag, den 17. Dezember 2015 at 12:00, in INF288, HS5

Der Vortrag folgt der Einladung von The lecture takes place at invitation by Professor Anna Wienhard