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Epimorphisms of 3-manifold groups and rigidity

Ponente: Michel Boileau
Institución: Aix-Marseille Université
Tipo de Evento: Investigación
Cuándo 10/08/2017
de 13:00 a 14:30
Dónde Salon de Seminarios Graciela Salicrup
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Given a proper $\pi_1$-surjective map $f: M \to N$ between two compact aspherical 3-manifolds, it is a natural question to find out extra conditions to ensure that $f$ is homotopic to a homeomorphism. We will give two criteria in term of virtual ranks and of virtual Heegaard genera. We will also discuss some open questions.