buondì,

il seminario di geometria di domani sarà come sempre in aula seminari alle 16.

Bruno

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MERCOLEDI' 29 GENNAIO 2014

SEMINARI DI GEOMETRIA 16:00-17:00, Sala Seminari (Dip. Matematica) Ordering Thurston geometries by maps of non-zero degree, and Gromov's volume Christoforos Neofytidis (Universität München)

Abstract: The existence of a map of non-zero degree defines a transitive relation, called domination relation, on the homotopy types of closed oriented manifolds. Gromov suggested to think of the domination relation as defining an ordering. In this talk, we investigate the domination relation for manifolds carrying a Thurston geometry and we give a criterion for non-domination stability with respect to direct products.