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Anubhav Mukherjee, Zoom: Obstructions to embeddings in 4-manifolds (using Bauer--Furuta type invariant)
Monday, April 26, 2021, 02:00pm - 03:00pm
In this talk I will discuss some new properties of an invariant for 4-manifold with boundary which was originally defined by Nobuo Iida. As one of the applications of this new invariant I will demonstrate how one can obstruct a knot from being h-slice (i.e bound a homologically trivial disk) in 4-manifolds. Also, this invariant can be useful to detect exotic smooth structures of 4-manifolds. This a joint work with Nobuo Iida and Masaki Taniguchi.
Location: Zoom

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