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相关论文: Separatedness of moduli of K-stable varieties

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We show that the CM line bundle on a proper family parametrizing specially K-stable varieties with maximal variation is ample. As an application, we show projectivity of any proper subspace of the coarse moduli space of uniformly…

代数几何 · 数学 2023-10-10 Masafumi Hattori

The 'moduli continuity method' permits an explicit algebraisation of the Gromov-Hausdorff compactification of K\"ahler-Einstein metrics on Fano manifolds in some fundamental examples. In this paper, we apply such method in the 'log setting'…

代数几何 · 数学 2020-11-11 Patricio Gallardo , Jesus Martinez-Garcia , Cristiano Spotti

We prove that K-polystable degenerations of Q-Fano varieties are unique. Furthermore, we show that the moduli stack of K-stable Q-Fano varieties is separated. Together with [Jia17,BL18], the latter result yields a separated Deligne-Mumford…

代数几何 · 数学 2019-07-10 Harold Blum , Chenyang Xu

We express notions of K-stability of polarized spherical varieties in terms of combinatorial data, vastly generalizing the case of toric varieties. We then provide a combinatorial sufficient condition of G-uniform K-stability by studying…

代数几何 · 数学 2026-03-25 Thibaut Delcroix

We establish the geometric Shafarevich boundedness conjecture for the moduli stack of stable minimal models, including in particular the moduli stack of KSB pairs.

代数几何 · 数学 2026-05-12 Junchao Shentu

In this paper, we shall show that a polarized algebraic manifold is K-stable if the polarization class admits a Kaehler metric of constant scalar curvature. This generalizes the results of Chen-Tian, Donaldson and Stoppa. (Parts of the…

微分几何 · 数学 2008-12-30 Toshiki Mabuchi

In this paper, we consider the CM line bundle on the K-moduli space, i.e., the moduli space parametrizing K-polystable Fano varieties. We prove it is ample on any proper subspace parametrizing reduced uniformly K-stable Fano varieties which…

代数几何 · 数学 2021-02-22 Chenyang Xu , Ziquan Zhuang

We prove that the degree of the CM line bundle for a normal family over a curve with fixed general fibers is strictly minimized if the special fiber is either a smooth projective manifold with a unique cscK metric or ``specially K-stable",…

代数几何 · 数学 2022-11-08 Masafumi Hattori

We show boundedness of polarized Calabi--Yau fibrations over curves only with fixed volumes of general fibers and Iitaka volumes. As its application, we construct a separated coarse moduli space of K-stable Calabi-Yau fibrations over curves…

代数几何 · 数学 2025-06-11 Kenta Hashizume , Masafumi Hattori

We formulate a notion of stability for maps between polarised varieties which generalises Kontsevich's definition when the domain is a curve and Tian-Donaldson's definition of K-stability when the target is a point. We give some examples,…

代数几何 · 数学 2018-06-01 Ruadhaí Dervan , Julius Ross

We show that a polarised manifold with a constant scalar curvature K\"ahler metric and discrete automorphisms is K-stable. This refines the K-semistability proved by S. K. Donaldson.

代数几何 · 数学 2008-03-31 Jacopo Stoppa

We develop a moduli theory of algebraic varieties and pairs of non-negative Kodaira dimension. We define stable minimal models and construct their projective coarse moduli spaces under certain natural conditions. This can be applied to a…

代数几何 · 数学 2022-11-22 Caucher Birkar

We prove that the CM line bundle is ample on the proper moduli space which parametrizes KSBA stable varieties.

代数几何 · 数学 2016-02-08 Zsolt Patakfalvi , Chenyang Xu

In this thesis we study the relationship between the existence of canonical metrics on a complex manifold and stability in the sense of geometric invariant theory. We introduce a modification of K-stability of a polarised variety which we…

微分几何 · 数学 2007-05-23 Gábor Székelyhidi

K-polystability of a polarised variety is an algebro-geometric notion conjecturally equivalent to the existence of a constant scalar curvature K\"ahler metric. When a variety is K-unstable, it is expected to admit a "most destabilising"…

代数几何 · 数学 2020-04-01 Ruadhaí Dervan

We prove that Kahler-Einstein Fano manifolds with finite automorphism groups form Hausdorff moduli algebraic space with only quotient singularities. We also discuss the limits as Q-Fano varieties which should be put on the boundary of its…

代数几何 · 数学 2014-07-01 Yuji Odaka

Let k be an algebraically closed field of characteristic zero. Let f:X-->S be a flat, projective morphism of k-schemes of finite type with integral geometric fibers. We prove existence of a projective relative moduli space for semistable…

代数几何 · 数学 2015-03-24 Adrian Langer

We study the K-stability of a polarised variety with non-reductive automorphism group. We associate a canonical filtration of the co-ordinate ring to each variety of this kind, which destabilises the variety in several examples which we…

代数几何 · 数学 2016-08-15 Giulio Codogni , Ruadhaí Dervan

We construct a moduli space of polarised manifolds which admit a constant scalar curvature K\"ahler metric. We show that this space admits a natural K\"ahler metric.

代数几何 · 数学 2025-04-01 Ruadhaí Dervan , Philipp Naumann

We algebraically prove K-stability of polarized Calabi-Yau varieties and canonically polarized varieties with mild singularities. In particular, the} "stable varieties" introduced by Kollar-Shepherd-Barron and Alexeev, which form compact…

代数几何 · 数学 2011-04-18 Yuji Odaka
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