The Uniform Version of Yau–Tian–Donaldson Conjecture for Singular Fano Varieties
نویسندگان
چکیده
We prove the following result: if a $$\,\,\,\,\,{\mathbb {Q}}\,\,\,\,\,$$ -Fano variety is uniformly K-stable, then it admits Kähler–Einstein metric. This proves uniform version of Yau–Tian–Donaldson conjecture for all (singular) Fano varieties with discrete automorphism groups. achieve this by modifying Berman–Boucksom–Jonsson’s strategy in smooth case appropriate perturbative arguments. perturbation approach depends on valuative criterion and non-Archimedean estimates, motivated our previous paper.
منابع مشابه
A Conjecture of Ax and Degenerations of Fano Varieties
A field k is called C1 if every homogeneous form f(x0, . . . , xn) ∈ k[x0, . . . , xn] of degree ≤ n has a nontrivial zero. Examples of C1 fields are finite fields (Chevalley) and function fields of curves over an algebraically closed field (Tsen). A field is called PAC (pseudo algebraically closed) if every geometrically integral k-variety has a k-point. An k-variety X is called geometrically ...
متن کاملFujita’s very ampleness conjecture for singular toric varieties
We present a self-contained combinatorial approach to Fujita’s conjectures in the toric case. Our main new result is a generalization of Fujita’s very ampleness conjecture for toric varieties with arbitrary singularities. In an appendix, we use similar methods to give a new proof of an anologous toric generalization of Fujita’s freeness conjecture due to Fujino. Given an ample divisor D and any...
متن کاملUnirationality of Fano Varieties
This note is an extension of the paper [HMP]. The main theorem of [HMP] states that a relatively smooth hypersurface (i.e. a hypersurface whose singular locus has sufficient large codimension with respect to its degree) is unirational. A mild modification can generalize this to complete intersections. As an application, we will show the Fano variety of a relatively smooth hypersurface is also u...
متن کاملGorenstein Toric Fano Varieties
We investigate Gorenstein toric Fano varieties by combinatorial methods using the notion of a reflexive polytope which appeared in connection to mirror symmetry. The paper contains generalisations of tools and previously known results for nonsingular toric Fano varieties. As applications we obtain new classification results, bounds of invariants and formulate conjectures concerning combinatoria...
متن کاملBirationally Rigid Fano Varieties
We give a brief survey of the concept of birational rigidity, from its origins in the two-dimensional birational geometry, to its current state. The main ingredients of the method of maximal singularities are discussed. The principal results of the theory of birational rigidity of higher-dimensional Fano varieties and fibrations are given and certain natural conjectures are formulated.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Peking mathematical journal
سال: 2021
ISSN: ['2524-7182', '2096-6075']
DOI: https://doi.org/10.1007/s42543-021-00039-5