Qimin Zhang

collaborators

2 papers

math.AG2026

Positivity of tangent bundle of weak Del Pezzo surfaces of degree $4$

Qimin Zhang

In this paper, we prove that for any weak Del Pezzo surface $S$ of degree at least $4$ , the tangent bundle $T_{S}$ is almost nef. For the proof, we use total dual VMRTs induced by co…

math.AG2025

Beauville--Bogomolov--Yau decomposition for Kähler generalized pairs

Shin-ichi Matsumura, Juanyong Wang, Xiaojun Wu +1

In this paper, we establish the Beauville--Bogomolov--Yau decomposition for generalized pairs in the Kähler setting, thereby extending this structure theorem to the natural framewo…

Positivity of tangent bundle of weak Del Pezzo surfaces of degree 4

Beauville--Bogomolov--Yau decomposition for Kähler generalized pairs

Positivity of tangent bundle of weak Del Pezzo surfaces of degree $4$