Sasaki–Einstein metrics and K–stability

© 2019, Mathematical Sciences Publishers. All rights reserved. We show that a polarized affine variety with an isolated singularity admits a Ricci flat Kähler cone metric if and only if it is K–stable. This generalizes the Chen–Donaldson– Sun solution of the Yau–Tian–Donaldson conjecture to Kähler c...

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Bibliographic Details
Main Authors: Collins, Tristan, Székelyhidi, Gábor
Other Authors: Massachusetts Institute of Technology. Department of Mathematics
Format: Article
Language:English
Published: Mathematical Sciences Publishers 2022
Online Access:https://hdl.handle.net/1721.1/145629
Description
Summary:© 2019, Mathematical Sciences Publishers. All rights reserved. We show that a polarized affine variety with an isolated singularity admits a Ricci flat Kähler cone metric if and only if it is K–stable. This generalizes the Chen–Donaldson– Sun solution of the Yau–Tian–Donaldson conjecture to Kähler cones, or equivalently, Sasakian manifolds. As an application we show that the five-sphere admits infinitely many families of Sasaki–Einstein metrics.