Events

Date: 18 November 2025   Time: 14:00 - 15:30

Location: MB503

Title: Gravitational instantons beyond self-duality

Abstract: Gravitational instantons are four-dimensional, complete, regular and smooth Riemannian manifolds satisfying the Euclidean Einstein equations, which arise naturally in some approaches to quantum gravity. There is a renewed interest in these geometries, thanks to the recent discovery of counterexamples to some famous conjectures, such as Euclidean black hole uniqueness and related problems in Riemannian geometry. After a review of some recent developments focused on the non-hyperkähler case, I will talk about deformations and integrability of the moduli space of ALF instantons.