Seminar series
Date
Wed, 22 Jul 2015
12:00
12:00
Location
L5
Speaker
Claude LeBrun
Organisation
Stonybrook
Given a smooth compact 4-manifold M which admits Einstein metrics, is its moduli space of Einstein metrics connected? While the corresponding question in higher dimensions typically has a negative answer, there are interesting 4-manifolds M for which the answer is known to be affirmative. One important class of 4-manifolds for which we do not know the answer, however, consists of the underlying 4-manifolds of the del Pezzo surfaces. In this lecture, I will explain a result which provides interesting partial information concerning this case.