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Equivalent notions of rank for manifolds of non-positive curvature and for mapping class groups of surfaces

What Seminar Geometry and Analysis on Groups
When 2012-03-20
from 15:00 to 17:00
Where D107
Contact Name Arzhantseva
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Cornelia Drutu Badea (Oxford)

 

Abstract. The talk shall overview various notions of rank coming from Riemannian geometry and the known results connecting them, then explain what happens for mapping class groups and in particular why three di erent notions of rank are equal in that case. This is a joint result with J. Behrstock.

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