Mathematics Colloquia and Seminars

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Ends of groups and harmonic functions


Speaker: Michael Kapovich, UC Davis
Location: 1147 MSB
Start time: Wed, Feb 13 2008, 4:10PM

I will explain how to use a compactness theorem for harmonic functions on Riemannian manifolds (or graphs) in order to give a geometric proof of the Stallings' theorem on free decomposition of groups with infinitely many ends.