AbstractEinstein metrics can be characterised as critical points of the (normalised) total scalar curvature functional. They are always saddle points. However, there are Einstein metrics which are local maxima of the functional restricted to metrics of fixed volume and constant scalar curvature. These are by definition stable Einstein metrics. Stability can equivalently be characterised by a sp...
Algebraic Geometry SeminarOrganizers:Caucher Birkar,贾甲Speaker:Behrouz Taji (UNSW)Time:Monday, 15:00 - 16:00April 20, 2026Venue:C548, Shuangqing Complex BuildingTitle:From stability of varieties to GIT-stability of Hilbert pointsAbstract:Deligne--Mumford showed that stability for curves is intimately connected to GIT‑stability of the corresponding Hilbert‑scheme points (for a suitable c...