Speaker: Prof. Igor Uljarevic (University of Belgrade)

Title: Exotic symplectomorphisms and contact circle actions

Time: 13:30-14:30 July 13, 2026 (Monday)

Place: MCM410

Abstract: I will explain a relation between exotic symplectomorphisms of a Liouville domain and contact circle actions on its boundary. In particular, I will show that the non-existence of exotic symplectomorphisms of the standard symplectic ball implies a rather strict topological condition on the free contact circle actions on the standard contact sphere. The talk is based on joint work with Dušan Drobnjak.