Personal tools
 

The Tits alternative for analytic 4-manifolds of nonpositive sectional curvature

— filed under:

Dr. Xiangdong Xie, Washington Univ. in StL

What
  • Topology Seminar
When Thu, Nov 21, 2002
from 01:10 PM to 02:00 PM
Where RH 211
Add event to calendar vCal
iCal

Abstract: We study subgroups of fundamental groups of real analytic closed 4-manifolds with nonpositive sectional curvature. In particular, we are interested in the following question: if a subgroup of the fundamental group is not virtually free abelian, does it contain a free group of rank two ? The proof uses the theory of general metric spaces of nonpositive curvature.

« May 2018 »
May
SuMoTuWeThFrSa
12345
6789101112
13141516171819
20212223242526
2728293031