Mathematisches Seminar

Kolloquium Prof. Dr. Oliver Goertsches, Universität Marburg: "From Lie group actions to graph theory to cohomology"

29.11.2016 von 16:15 bis 17:15

LMS 4 - Raum 424 - Kleiner Hörsaal

Abstract:

GKM theory associates to certain kinds of Lie group actions on manifolds a graph from which one can compute the equivariant cohomology of the action, as well as the de Rham cohomology of the manifold that is acted on. We will explain a result about the GKM theory of isometric actions on positively curved manifolds obtained in joint work with Michael Wiemeler.

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