Hakan Mülayim - Exotic Discs in $B^4$

Hakan Mülayim
Eylem Zeliha Yildiz
Exotic Discs in $B^4$
It is known that Selman Akbulut knot bounds two different discs in $B^4$ which are not smoothly isotopic relative to boundary to each other. Recently, Kyle Hayden and Isaac Sundberg gave an alternative proof using Khovanov Homology. During the talk we will present the recent proof.

Видео Hakan Mülayim - Exotic Discs in $B^4$ канала DRP Türkiye