activity
20162026
most citedThe homotopy classification of four-dimensional toric orbifolds

3 citations · 15 across the 16 of their papers we have counts for

collaborators

17 papers

math.DG2026

Rigid and Nonrigid Isotropic Nef Classes on K3 Surfaces

Xin Fu, Zexuan Ouyang

Let be a fixed complex K3 surface and let be a -class on the boundary of the Kähler cone with . We build a novel connection between two…

math.AG2026

On the Datar-Mete-Song minimal slope conjecture

Xin Fu

We prove a conjecture of Datar-Mete-Song \cite{DMS} characterizing -slope semi-stability by the minimal -slope. More precisely, for a semi-stable pair of Kähler classes $(α,β…

math.AT2023

The integral cohomology rings of four-dimensional toric orbifolds

Xin Fu, Tseleung So, Jongbaek Song

Let be a 4-dimensional toric orbifold associated to a polygon and a characteristic function . Assuming that is locally smooth over a vertex of , we dete…

math.DG2022★ 1 cited

The generalized Kähler Calabi-Yau problem

Vestislav Apostolov, Xin Fu, Jeffrey Streets +1

We formulate an extension of the Calabi conjecture to the setting of generalized Kähler geometry. We show a transgression formula for the Bismut Ricci curvature in this setting, wh…

math.DG2022

Uniqueness of Tangent Cone of Kahler Einstein Metrics on Singular Varieties with Crepant Singularities

Xin Fu

Let be a polarized Calabi Yau variety (or canonical polarized variety) with crepant singularity. Suppose (or ) is the unique Ricci…

math.DG2021

Asymptotics of Kähler-Einstein metrics on complex hyperbolic cusps

Xin Fu, Hans-Joachim Hein, Xumin Jiang

Let be a negative holomorphic line bundle over an -dimensional complex torus . Let be a Hermitian metric on such that the curvature form of the dual Hermitian…

math.DG2021

Codimension four regularity of generalized Einstein structures

Xin Fu, Aaron Naber, Jeffrey Streets

We establish codimension 4 regularity of noncollapsed sequences of metrics with bounds on natural generalizations of the Ricci tensor. We obtain a priori L2 curvature estimates on…

math.CV2021

Dirichlet problem of complex Monge-Ampère equation near an isolated KLT singularity

Xin Fu

We solve the Dirichlet Problem of Monge-Ampère equation near an isolate Klt singularity, which generalizes the result of Eyssidieux-Guedj-Zeriahi \cite{EGZ}, where the Monge-Ampère…

math.DG2021★ 2 cited

Kahler-Einstein metric near an isolated log canonical singularity

Ved Datar, Xin Fu, Jian Song

We construct Kahler-Einstein metrics with negative scalar curvature near an isolated log canonical (non-log terminal) singularity. Such metrics are complete near the singularity if…

math.AT2021★ 1 cited

Cohomology of smooth toric varieties: naturality

Matthias Franz, Xin Fu

Building on the recent computation of the cohomology rings of smooth toric varieties and partial quotients of moment-angle complexes, we investigate the naturality properties of th…

math.AT2020★ 3 cited

The homotopy classification of four-dimensional toric orbifolds

Xin Fu, Tseleung So, Jongbaek Song

Let be a -dimensional toric orbifold. If has a non-trivial odd primary torsion, then we show that is homotopy equivalent to the wedge of a Moore space and a CW-…

math.AT2020

Model category structures on multicomplexes

Xin Fu, Ai Guan, Muriel Livernet +1

We present a family of model structures on the category of multicomplexes. There is a cofibrantly generated model structure in which the weak equivalences are the morphisms inducin…

math.AT2019★ 1 cited

Homotopy types of partial quotients for a certain case

Xin Fu

In this paper, we determine the homotopy type of the quotient space , given by the moment-angle complex under the diagonal circle a…

math.DG2018★ 1 cited

On the construction of a complete Kahler-Einstein metric with negative scalar curvature near an isolated log-canonical singularity

Hanlong Fang, Xin Fu

In this short note we are concerned with the Kahler-Einstein metrics near cone type log canonical singularities. By two different approaches, we construct a complete Kahler-Einstei…

math.AT2018★ 2 cited

Simplicial -complexes and representation stability of polyhedral products

Xin Fu, Jelena Grbić

Representation stability in the sense of Church-Farb is concerned with stable properties of representations of sequences of algebraic structures, in particular of groups. We study…

math.DG2017★ 3 cited

Geometric estimates for complex Monge-Ampere equations

Xin Fu, Bin Guo, Jian Song

We prove uniform gradient and diameter estimates for a family of geometric complex Monge-Ampere equations. Such estimates can be applied to study geometric regularity of singular s…

math.DG2016★ 1 cited

The Kähler-Ricci flow on Fano bundles

Xin Fu, Shijin Zhang

We study the behavior of the Kähler-Ricci flow on some Fano bundle which is a trivial bundle on one Zariski open set. We show that if the fiber is blown up at one…