Finite generation for valuations computing stability thresholds and applications to K-stability

Y Liu, C Xu, Z Zhuang - Annals of Mathematics, 2022 - projecteuclid.org
We prove that on any log Fano pair of dimension n whose stability threshold is less than
n+1n, any valuation computing the stability threshold has a finitely generated associated …

Openness of K-semistability for Fano varieties

H Blum, Y Liu, C Xu - Duke Mathematical Journal, 2022 - projecteuclid.org
In this paper, we prove the openness of K-semistability in families of log Fano pairs by
showing that the stability threshold is a constructible function on the fibers. We also prove …

On positivity of the CM line bundle on K-moduli spaces

C Xu, Z Zhuang - Annals of mathematics, 2020 - projecteuclid.org
In this paper, we consider the CM line bundle on the K-moduli space, ie, the moduli space
parametrizing K-polystable Fano varieties. We prove it is ample on any proper subspace …

Optimal destabilizing centers and equivariant K-stability

Z Zhuang - Inventiones mathematicae, 2021 - Springer
We give an algebraic proof of the equivalence of equivariant K-semistability (resp.
equivariant K-polystability) with geometric K-semistability (resp. geometric K-polystability) …

[图书][B] The Calabi problem for Fano threefolds

C Araujo, AM Castravet, I Cheltsov, K Fujita… - 2023 - books.google.com
Algebraic varieties are shapes defined by polynomial equations. Smooth Fano threefolds
are a fundamental subclass that can be thought of as higher-dimensional generalizations of …

Moduli of boundary polarized Calabi-Yau pairs

K Ascher, D Bejleri, H Blum, K DeVleming… - arXiv preprint arXiv …, 2023 - arxiv.org
We develop the moduli theory of boundary polarized CY pairs, which are slc Calabi-Yau
pairs $(X, D) $ such that $ D $ is ample. The motivation for studying this moduli problem is to …

K-stability of Fano varieties: an algebro-geometric approach

C Xu - EMS Surveys in Mathematical Sciences, 2021 - content.ems.press
K-stability of Fano varieties: an algebro-geometric approach Page 1 EMS Surv. Math. Sci. 8 (2021),
265–354 DOI 10.4171/EMSS/51 © 2021 European Mathematical Society Published by EMS …

G-uniform stability and Kähler–Einstein metrics on Fano varieties

C Li - Inventiones mathematicae, 2022 - Springer
Let X be any Q Q-Fano variety and Aut (X) _0 Aut (X) 0 be the identity component of the
automorphism group of X. Let GG be a connected reductive subgroup of Aut (X) _0 Aut (X) 0 …

On properness of K-moduli spaces and optimal degenerations of Fano varieties

H Blum, D Halpern-Leistner, Y Liu, C Xu - Selecta Mathematica, 2021 - Springer
We establish an algebraic approach to prove the properness of moduli spaces of K-
polystable Fano varieties and reduce the problem to a conjecture on destabilizations of K …

Positivity of the CM line bundle for families of K-stable klt Fano varieties

G Codogni, Z Patakfalvi - Inventiones mathematicae, 2021 - Springer
Abstract The Chow–Mumford (CM) line bundle is a functorial line bundle on the base of any
family of klt Fano varieties. It is conjectured that it yields a polarization on the moduli space …