

Iskovskikh Seminar
September 12, 2019 12:00, Moscow, Steklov Mathematical Institute, room 540






Deltainvariants for Fano varieties with reductive group actions
A. Golota^{} 
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Abstract:
In 1987 Tian defined the alphainvariant for a Fano variety with a
reductive group action. He gave a sufficient condition for a Fano
variety to admit a KaehlerEinstein metric in terms of this invariant.
Recently Fujita and Odaka suggested the socalled deltainvariant, which
characterizes the existence of a KE metric on a Fano variety with finite
automorphism group. In my talk I will explain how to define a version of
the deltainvariant for a Fano variety with an action of a (possibly
infinite) reductive group.

