期刊
COMPOSITIO MATHEMATICA
卷 154, 期 6, 页码 1131-1158出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1112/S0010437X18007042
关键词
Fano varieties; singularities; K-stability; Kahler-Einstein metrics
类别
资金
- NSF [DMS-0968337, DMS-1362960]
We show that the anti-canonical volume of an n-dimensional Kahler-Einstein Q-Fano variety is bounded from above by certain invariants of the local singularities, namely lct(n). mult for ideals and the normalized volume function for real valuations. This refines a recent result by Fujita. As an application, we get sharp volume upper bounds for Kahler-Einstein Fano varieties with quotient singularities. Based on very recent results by Li and the author, we show that a Fano manifold is K-semistable if and only if a de Fernex-Ein-Mustata type inequality holds on its affine cone.
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