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相关论文: On deformations of toric Fano varieties

200 篇论文

We overview some recent results on Fano varieties giving evidence of their rigid nature under small deformations.

代数几何 · 数学 2009-11-04 Tommaso de Fernex , Christopher Hacon

We prove a characterization of Fano type varieties.

代数几何 · 数学 2026-03-17 Yiming Zhu

We present some applications of the deformation theory of toric Fano varieties to K-(semi/poly)stability of Fano varieties. First, we present two examples of K-polystable toric Fano 3-fold with obstructed deformations. In one case, the…

代数几何 · 数学 2021-09-02 Anne-Sophie Kaloghiros , Andrea Petracci

This article gives an overview of toric Fano and toric weak Fano varieties associated to graphs and building sets. We also study some properties of such toric Fano varieties and discuss related topics.

代数几何 · 数学 2018-09-27 Yusuke Suyama

This paper is devoted to the study of various aspects of deformations of log pairs, especially in connection to questions related to the invariance of singularities and log plurigenera. In particular, using recent results from the minimal…

代数几何 · 数学 2009-06-24 Tommaso de Fernex , Christopher D. Hacon

This paper is a survey about cylinders in Fano varieties and related problems.

代数几何 · 数学 2021-05-11 Ivan Cheltsov , Jihun Park , Yuri Prokhorov , Mikhail Zaidenberg

In this note, we discuss a number of open problems in K-stability theory.

代数几何 · 数学 2026-01-23 Chenyang Xu , Ziquan Zhuang

We construct one-parameter complex analytic families whose special fibers are complete toric varieties. Under some assumptions, the general fibers of these families also become toric varieties and we can explicitly describe the…

代数几何 · 数学 2007-05-23 Hiroshi Sato

We prove that a weak Fano manifold has unobstructed deformations. For a general variety, we investigate conditions under which a variety is necessarily obstructed.

代数几何 · 数学 2013-05-23 Taro Sano

We survey some results on toric topology.

代数拓扑 · 数学 2017-01-10 Mikiya Masuda

We completely classify toric weakened Fano 3-folds, that is, smooth toric weak Fano 3-folds which are not Fano but are deformed to smooth Fano 3-folds. There exist exactly 15 toric weakened Fano 3-folds up to isomorphisms.

代数几何 · 数学 2007-05-23 Hiroshi Sato

We give a new, shorter computation of Frobenius push-forwards of line bundles on toric varieties.

代数几何 · 数学 2010-12-13 Piotr Achinger

We extend the Altmann--Mavlyutov construction of homogeneous deformations of affine toric varieties to the case of toric pairs $(X, \partial X)$, where $X$ is an affine or projective toric variety and $\partial X$ is its toric boundary. As…

代数几何 · 数学 2021-09-02 Andrea Petracci

In this paper, we obtain a complete classification of smooth toric Fano varieties equipped with extremal contractions which contract divisors to curves for any dimension. As an application, we obtain a complete classification of smooth…

代数几何 · 数学 2007-05-23 Hiroshi Sato

In these notes we provide the foundation for the deformation theoretic parts of arXiv:0807.3753 and arXiv:math/0102005.

环与代数 · 数学 2010-10-07 Michel Van den Bergh

We give a survey of the recent progress on the study of K-stability of Fano varieties by an algebro-geometric approach.

代数几何 · 数学 2020-11-23 Chenyang Xu

We classify smooth Fano threefolds that admit degenerations to toric Fano threefolds with ordinary double points.

代数几何 · 数学 2018-09-11 Sergey Galkin

An algebraic deformation theory of dialgebra morphisms is obtained.

环与代数 · 数学 2008-12-07 Donald Yau

In this paper, we give a tropical method for computing Gromov-Witten type invariants of Fano manifolds of special type. This method applies to those Fano manifolds which admit toric degenerations to toric Fano varieties with singularities…

代数几何 · 数学 2010-01-19 Takeo Nishinou

We study the Farrell and Jones Warping Deformation.

微分几何 · 数学 2016-03-22 Pedro Ontaneda
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