Talk page

Title:
Divergence of geodesics

Speaker:
Moon Duchin

Abstract:
The divergence of geodesics measures how fast geodesics spread apart, and with a bit of care can be defined to produce a large-scale geometric statistic related to curvature. I’ll define divergence and higher-dimensional analogs, emphasizing examples. This gives an interesting family of geometric invariants “at infinity.” I’ll discuss results on divergence in settings of interest for geometric topologists and geometric group theorists: mapping class groups, Teichmuller space, and right-angled Artin groups.

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=1970

Workshop:
Simons- Program: Low Dimensional Topology (Spring 2013)