English

Reflexive symmetric differentials and quotients of bounded symmetric domains

Algebraic Geometry 2024-01-11 v2

Abstract

For each classical irreducible bounded symmetric domain D\mathcal{D}, Klingler has computed the minimum number mDm_{\mathcal{D}} such that any smooth projective quotient X=D/ΓX=\mathcal{D}/\Gamma, for ΓAut0(D)\Gamma\in\textrm{Aut}^0(\mathcal{D}), satisfies H0(X,SymiΩX1)=0H^0(X,\mathrm{Sym}^i\Omega^1_X)=0 for 0<i<mD0<i<m_{\mathcal{D}}. In this article, we extend Klingler's result to the case when XX is normal and projective. This, together with a normal version of Arapura's result about the relationship between the vanishing of global symmetric differentials on XX and the rigidity of finite dimensional representations of π1(X)\pi_1(X), gives rigidity statements for representations of π1(X)\pi_1(X) and π1(Xreg)\pi_1(X_{reg}) in a low dimensional range, when XX is a normal projective quotient of a bounded symmetric domain.

Keywords

Cite

@article{arxiv.2311.16814,
  title  = {Reflexive symmetric differentials and quotients of bounded symmetric domains},
  author = {Aryaman Patel},
  journal= {arXiv preprint arXiv:2311.16814},
  year   = {2024}
}

Comments

9 pages, v2 minor changes, comments welcome