Buondì,

Siete invitati al seminario di geometria di giovedì prossimo. A presto, Bruno

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23-Nov-2017 - 16:00 Sala Seminari (Dip. Matematica) http://www.dm.unipi.it/webnew/it/aula/sala-seminari-dip-matematica Equivariant hyperbolization and applications http://www.dm.unipi.it/webnew/it/seminari/equivariant-hyperbolization-and-applications Danny Ruberman

Given a closed 3-manifold Y with the action of a finite group G, we show how to find a closely related hyperbolic G-manifold Y’. The two manifolds are related by an invertible equivariant homology cobordism; a cobordism from Y to Y’ is invertible if there is a second cobordism from Y’ to Y such that the union of the two along Y’ is a product cobordism. I will give a collection of applications in 3 and 4-dimensional topology. (Joint work with Dave Auckly, Hee Jung Kim, and Paul Melvin.)