Seminario del 2022

Dicembre
13
2022
Marco Marengon
Discs and other surfaces in 4-manifolds
nell'ambito della serie: SEMINARIO DI ALGEBRA E GEOMETRIA
algebra e geometria
A popular question in low-dimensional topology is to determine whether a given knot bounds a disc in a given 4-manifold with boundary the 3-sphere. In the first part of the talk I will introduce this problem, discuss its connection with the smooth, 4-dimensional Poincaré conjecture, and describe the state of the art. In the second part I will state and prove some of my results in collaboration with various mathematicians about this problem for some 4-manifolds.
organizzato da: Enrico Fatighenti e Stefano Riolo
nell'ambito del Progetto P.R.I.N. PRIN 2017 MIGLIORINI del prof. Luca Migliorini

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