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Related papers: K-stability implies CM-stability

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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…

Differential Geometry · Mathematics 2008-12-30 Toshiki Mabuchi

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.

Algebraic Geometry · Mathematics 2008-03-31 Jacopo Stoppa

In this paper, by introducing a wider class of one-parameter group actions for test configurations, we have a stronger form of the definition of K-stability. This allows us to obtain some key step of my preceding work in proving that…

Differential Geometry · Mathematics 2009-10-27 Toshiki Mabuchi

We show that certain Galois covers of K-semistable Fano varieties are K-stable. We use this to give some new examples of Fano manifolds admitting K\"ahler-Einstein metrics, including hypersurfaces, double solids and threefolds.

Algebraic Geometry · Mathematics 2018-05-16 Ruadhaí Dervan

We annnounce a proof of the fact that a K-stable Fano manifold admits a Kahler-Einstein metric and give a brief outline of the proof.

Differential Geometry · Mathematics 2012-10-30 Xiu-Xiong Chen , Simon Donaldson , Song Sun

Assume that a projective variety together with a polarization is uniformly K-stable. If the polarization is canonical or anti-canonical, then the projective variety is uniformly K-stable with respects to any polarization sufficiently close…

Algebraic Geometry · Mathematics 2017-09-26 Kento Fujita

We show that general one-nodal prime Fano threefolds of genus $12$ are K-polystable.

Algebraic Geometry · Mathematics 2025-10-14 Elena Denisova , Anne-Sophie Kaloghiros

In this article, we completely determine which log Fano hyperplane arrangements are uniformly K-stable, K-stable, K-polystable, K-semistable or not.

Algebraic Geometry · Mathematics 2017-09-26 Kento Fujita

We prove that all smooth Fano threefolds of rank 4 and degree 24 are K-stable.

Algebraic Geometry · Mathematics 2022-06-27 Grigory Belousov , Konstantin Loginov

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…

Algebraic Geometry · Mathematics 2021-02-22 Chenyang Xu , Ziquan Zhuang

For a polarized algebraic manifold $(X,L)$, let $T$ be an algebraic torus in the group of all holomorphic automorphisms of $X$. Then strong relative K-stability will be shown to imply asymptotic relative Chow-stability. In particular, by…

Differential Geometry · Mathematics 2013-07-10 Toshiki Mabuchi , Yasufumi Nitta

It is conjectured that to test the K-polystability of a polarised variety it is enough to consider test-configurations which are equivariant with respect to a torus in the automorphism group. We prove partial results towards this…

Algebraic Geometry · Mathematics 2019-09-04 Giulio Codogni , Jacopo Stoppa

We prove that every smooth Fano threefold from the family No 2.8 is K-stable. Such a Fano threefold is a double cover of the blow-up of $\mathbb{P}^3$ at one point branched along an anti-canonical divisor.

Algebraic Geometry · Mathematics 2022-11-16 Yuchen Liu

We introduce uniform K-stability and its relationship with the coercivity property of the K-energy functional, for general polarized manifolds. Since the automorphism groups are not necessarily finite, size of the norm measuring uniformity…

Differential Geometry · Mathematics 2020-07-09 Tomoyuki Hisamoto

We show that if a polarised manifold admits an extremal metric then it is K-polystable relative to a maximal torus of automorphisms.

Differential Geometry · Mathematics 2009-12-22 Jacopo Stoppa , Gábor Székelyhidi

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…

Algebraic Geometry · Mathematics 2026-03-25 Thibaut Delcroix

We prove a product formula for $\delta$-invariant and as an application, we show that product of K-(semi, poly)stable Fano varieties is also K-(semi, poly)stable.

Algebraic Geometry · Mathematics 2021-02-22 Ziquan Zhuang

We show that G-equivariant K-semistability (resp. G-equivariant K-polystability) implies K-semistability (resp. K-polystability) for log Fano pairs when G is a finite group.

Algebraic Geometry · Mathematics 2020-01-30 Yuchen Liu , Ziwen Zhu

In this paper, we discuss stable pairs, which were first studied by S. Paul, and give a proof for a result I learned from him. As a consequence, we will show that the K-stability implies the CM-stability.

Differential Geometry · Mathematics 2019-01-03 Gang Tian

In this paper we study K-polystability of arbitrary (possibly non-projective) compact K\"ahler manifolds admitting holomorphic vector fields. As a main result, we show that existence of a constant scalar curvature K\"ahler (cscK) metric…

Differential Geometry · Mathematics 2017-12-19 Zakarias Sjöström Dyrefelt
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