English

Extension of cohomology classes and holomorphic sections defined on subvarieties

Complex Variables 2019-09-20 v1 Algebraic Geometry Differential Geometry

Abstract

In this paper, we obtain two extension theorems for cohomology classes and holomorphic sections defined on analytic subvarieties, which are defined as the supports of the quotient sheaves of multiplier ideal sheaves of quasi-plurisubharmonic functions with arbitrary singularities. The first result gives a positive answer to a question posed by Cao-Demailly-Matsumura, and unifies a few well-known injectivity theorems. The second result generalizes and optimizes a general L2L^2 extension theorem obtained by Demailly.

Keywords

Cite

@article{arxiv.1909.08822,
  title  = {Extension of cohomology classes and holomorphic sections defined on subvarieties},
  author = {Xiangyu Zhou and Langfeng Zhu},
  journal= {arXiv preprint arXiv:1909.08822},
  year   = {2019}
}