activity
20222026
most citedNo semistability at infinity for Calabi-Yau metrics asymptotic to cones

6 citations · 7 across the 8 of their papers we have counts for

collaborators

10 papers

math.DG2026

Scalar curvature bounds and tangent cones for Kähler--Ricci shrinkers

Yu Li, Junsheng Zhang

We prove a uniform scalar curvature bound, depending only on the dimension, for Kähler--Ricci shrinkers. We also prove that every noncompact Kähler--Ricci shrinker has a unique tan…

math.DG2026

Finite time singularities of the Ricci flow on compact Kähler surfaces are of Type I

Charles Cifarelli, Ronan Conlon, Max Hallgren +1

For any volume-collapsing finite-time singularity of a Kähler-Ricci flow on a compact Kähler surface, we show the flow satisfies a Type I curvature bound and classify the correspon…

math.DG2026

Some uniform estimates for Kähler--Ricci Shrinkers

Junsheng Zhang

In this paper, we establish several uniform estimates for Kähler--Ricci shrinkers without imposing any curvature assumptions. In particular, we prove: 1. a uniform lower bound for…

math.DG2026

On compact steady pluriclosed soliton surfaces

Junsheng Zhang, Keshu Zhou

We complete the classification of non-Kähler steady pluriclosed soliton on compact complex surfaces, as initiated by Streets. The underlying complex structure must be a Hopf surfac…

math.DG2026

Gromov-Hausdorff Limits of Noncollapsed Kähler-Ricci Flows and the Geometry of Ricci Shrinkers

Yu Li, Junsheng Zhang

We study the metric geometry of finite-time singularities of volume-noncollapsed Kähler-Ricci flows and the geometry at infinity of Ricci shrinkers. For a compact volume-noncollaps…

math.DG2026

On the geometry of non-collapsed polarized cscK surfaces

Junsheng Zhang, Keshu Zhou

We show that the Gromov--Hausdorff convergence of non-collapsed polarized constant scalar curvature Kähler (cscK) surfaces can be realized as convergence in a Hilbert scheme. We al…

math.DG2026

Singular Kähler--Ricci shrinkers and polarized Fano fibrations

Max Hallgren, Junsheng Zhang

We prove that any singular Kähler--Ricci shrinker arising as a noncollapsed limit of Kähler--Ricci flows admits a natural structure of a polarized Fano fibration. We also show…

math.DG2023★ 1 cited

A note on the supercritical deformed Hermitian-Yang-Mills equation

Junsheng Zhang

We show that on a compact Kähler manifold all real -classes admitting solutions to the supercritical deformed Hermitian-Yang-Mills equation form a both open and closed subse…

math.DG2022★ 6 cited

No semistability at infinity for Calabi-Yau metrics asymptotic to cones

Song Sun, Junsheng Zhang

We discover a "no semistability at infinity" phenomenon for complete Calabi-Yau metrics asymptotic to cones, by eliminating the possible appearance of an intermediate K-semistable…

math.DG2022

Hermitian-Yang-Mills connections on some complete non-compact Kähler manifolds

Junsheng Zhang

We give an algebraic criterion for the existence of projectively Hermitian-Yang-Mills metrics on a holomorphic vector bundle over some complete non-compact Kähler manifolds $(X…