K-stability of Gorenstein Fano group compactifications with rank two
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초록

We give a classification of Gorenstein Fano bi-equivariant compactifications of semi-simple complex Lie groups with rank two, and determine which of them are equivariant K-stable and admit (singular) Kahler-Einstein metrics. As a consequence, we obtain several explicit examples of K-stable Fano varieties admitting (singular) Kahler-Einstein metrics. We also compute the greatest Ricci lower bounds, equivalently the delta invariants for K-unstable varieties. This gives us three new examples on which each solution of the Kahler-Ricci flow is of type II.

키워드

Singular Kahler-Einstein metricsequivariant K-stabilityGorenstein Fano group compactificationsmoment polytopesgreatest Ricci lower boundsKahler-Ricci flowKAHLER-EINSTEIN METRICSGREATEST LOWER BOUNDSSYMMETRIC VARIETIESRICCI CURVATUREMANIFOLDSLIMITS
제목
K-stability of Gorenstein Fano group compactifications with rank two
저자
Lee, Jae-HyoukPark, Kyeong-DongYoo, Sungmin
DOI
10.1142/S0129167X22500835
발행일
2022-11
유형
Article
저널명
International Journal of Mathematics
33
13