Postdoc Geometry/Dynamics Seminar

from Thursday
June 01, 2017 to Sunday
December 31, 2017
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Wednesday
November 15, 2017

3:00 PM - 3:30 PM
Math Tower 5-127
Demetre Kazaras, Stony Brook University
Positive scalar curvature and surgery

I'll talk about a basic tool in the study of Riemannian metrics of positive scalar curvature. The first version of this idea is a down-to-earth construction due to Gromov-Lawson which shows that any manifold which results from a codimension >2 surgery on a manifold with a positive scalar curvature metric also admits a positive scalar curvature metric. I'll also talk about a more general version of this tool due to Chernysh and Walsh and sketch one or two non-obvious applications of these ideas.


Show events for:
Instructions for subscribing to Stony Brook Math Department Calendars