activity
20232026
collaborators

6 papers

math.DG2026

Nakai-Moishezon type criteria for Hessian type equations on compact Kähler manifolds

Jixiang Fu, Xuan Li, Dekai Zhang +1

We establish numerical criteria for polynomial positivity of real -classes on compact Kähler manifolds for strictly right-Noetherian polynomials. As applications, we obtain…

math.DG2026

Divisorial Rigidity and Regularity of Boundary Cases for the Supercritical LYZ Equation

Jixiang Fu, Shing-Tung Yau, Dekai Zhang +1

We study the supercritical LYZ equation on compact Kähler manifolds at the boundary of stability. Under numerical semistability, we prove a quantitative positivity estimate on the…

math.DG2026

Limiting Behavior of a Class of Hermitian Yang--Mills Metrics, II: Exponential Approximation

Jixiang Fu, Dekai Zhang

This paper is a sequel to [9], where the first-named author constructed a family of approximate Hermitian Yang--Mills metrics on stable rank-two holomorphic vector bundle…

math.DG2026

A Numerical Criterion for the 2-Hessian Equation on Compact Kähler Manifolds

Jixiang Fu, Dekai Zhang, Ziyi Zhang

We show that a Nakai--Moishezon-type criterion associated with the complex -Hessian equation produces a Gauduchon class. In complex dimension three, this numerical criterion is…

math.DG2025

The Critical LYZ Equation in Kähler Geometry

Jixiang Fu, Shing-Tung Yau, Dekai Zhang

We establish the existence of smooth solutions for the LYZ equation at the critical phase , thereby solving the critical case of a problem posed by Collins-Jacob-…

math.DG2023

The parabolic quaternionic Monge-Ampère type equation on hyperKähler manifolds

Jixiang Fu, Xin Xu, Dekai Zhang

We prove the long time existence and uniqueness of solution to a parabolic quaternionic Monge-Ampère type equation on a compact hyperKähler manifold. We also show that after normal…