Siegel der Universität Augsburg

Universität Augsburg
Institut für Mathematik

 Siegel der Universität Augsburg

 

Oberseminar Differentialgeometrie

 

Professor Dr. Gérard Besson
Université Grenoble Alpes
 
spricht am
 
Montag, 8. Dezember 2025
 
um
 
16 Uhr s.t.
 
im
 
Raum 2004 (L1)
 
über das Thema:
 

»On the intrinsic geometry of horospheres in negative curvature«

Abstract:
There are classical results showing that if the horospheres of a negatively curved closed manifold have constant mean curvature then it is locally symmetric. Here we shall present a rigidity result involving the intrinsic Riemannian structure of these horospheres. More precisely if one of them is flat than the closed manifold is locally real hyperbolic. This is based on a joint work with Gilles Courtois and Sa'ar Hersonsky.

 

Hierzu ergeht herzliche Einladung.
Prof. Dr. Bernhard Hanke
 

Kaffee, Tee und Gebäck eine halbe Stunde vor Vortragsbeginn im Raum 2006 (L1).


[Impressum]      [Datenschutz]      wwwadm@math.uni-augsburg.de,     Di 28-Okt-2025 14:18:42 MEZ