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- W4301880862 abstract "Let $X$ be a canonically polarized variety, i.e. a complex projective variety such that its canonical class $K_{X}$ defines an ample $Q-$line bundle, and satisfying the conditions $G_1$ and $S_2$. Our main result says that $X$ admits a Kahler-Einstein metric iff $X$ has semi-log canonical singularities i.e. iff $X$ is a stable variety in the sense of Koll'ar-Shepherd-Barron and Alexeev (whose moduli spaces are known to be compact). By definition a Kahler-Einstein metric in this singular context simply means a Kahler-Einstein on the regular locus of $X$ with volume equal to the algebraic volume of $K_{X},$ i.e. the top intersection number of $K_{X}.$ We also show that such a metric is uniquely determined and extends to define a canonical positive current in $c_{1}(K_{X}).$ Combined with recent results of Odaka our main result shows that $X$ admits a Kahler-Einstein metric iff $X$ is K-stable, which thus confirms the Yau-Tian-Donaldson conjecture in this general setting of (possibly singular) canonically polarized varieties. More generally, our results are shown to hold in the setting of log minimal varieties and they also generalize some prior results concerning Kahler-Einstein metrics on quasi-projective varieties." @default.
- W4301880862 created "2022-10-05" @default.
- W4301880862 creator A5056666533 @default.
- W4301880862 creator A5073101289 @default.
- W4301880862 date "2013-04-07" @default.
- W4301880862 modified "2023-09-27" @default.
- W4301880862 title "Kahler-Einstein metrics on stable varieties and log canonical pairs" @default.
- W4301880862 doi "https://doi.org/10.48550/arxiv.1304.2087" @default.
- W4301880862 hasPublicationYear "2013" @default.
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