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

Compact KÃ¤hler manifolds with nef anti-canonical bundle

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

In this paper, we prove that a compact KÃ¤hler manifold $X$ with the nef anti-canonical bundle $- K_{X}$ admits a locally trivial fibration $I ¨ : X \to Y$ , where the fiber $F$ i…

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

Compact KÃ¤hler manifolds with nef anti-canonical bundle

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