Embedding surfaces in 4-manifolds

by Dr Arunima Ray (Max-Planck Institut Bonn)

Tuesday 5 Apr 2022, 17:00 → 18:00 Europe/Berlin

Geom H5 (Geomatikum)

Abstract:

When is a given map of a surface to a 4-manifold homotopic to an embedding? I’ll motivate this question and give a survey of related results, including the celebrated work of Freedman and Quinn, and culminating in a general surface embedding theorem. The talk will be based on joint work with Daniel Kasprowski, Mark Powell, and Peter Teichner.