Vanishing theorems and rational connectedness on holomorphic tensor fields

Abstract

A vanishing theorem for uniformly RC $k$-positive Hermitian holomorphic vector bundles is established. It turns out that the holomorphic tangent bundle of a compact complex manifold equipped with a positive $k$-Ricci curvature Kähler metric is uniformly RC $k$-positive. Two main applications are presented. The first one is to deduce that spaces of some holomorphic tensor fields on such Kähler or more generally Kähler-like Hermitian manifolds are trivial, generalizing some recent results. The second one is to show that a compact Kähler manifold whose holomorphic tangent bundle can be endowed with either a uniformly RC $k$-positive Hermitian metric or a positive $k$-Ricci curvature Kähler-like Hermitian metric is projective and rationally connected.

20 pages

References in corpus (4)

• Negative Holomorphic curvature and positive canonical bundle
• An extension of a theorem of Wu-Yau
• RC-positive metrics on rationally connected manifolds
• Vanishing theorems on compact Chern-Kähler-like Hermitian manifolds