English

Meromorphic limits of automorphisms

Complex Variables 2019-01-31 v1 Algebraic Geometry

Abstract

Let XX be a compact complex manifold in the Fujiki class C\mathscr{C}. We study the compactification of Aut0(X)\operatorname{Aut}^0(X) given by its closure in Barlet cycle space. The boundary points give rise to non-dominant meromorphic self-maps of XX. Moreover convergence in cycle space yields convergence of the corresponding meromorphic maps. There are analogous compactifications for reductive subgroups acting trivially on AlbX\operatorname{Alb} X. If XX is K\"ahler, these compactifications are projective. Finally we give applications to the action of Aut(X)\operatorname{Aut}(X) on the set of probability measures on XX. In particular we obtain an extension of Furstenberg lemma to manifolds in the class C\mathscr{C}.

Keywords

Cite

@article{arxiv.1901.10724,
  title  = {Meromorphic limits of automorphisms},
  author = {Leonardo Biliotti and Alessandro Ghigi},
  journal= {arXiv preprint arXiv:1901.10724},
  year   = {2019}
}
R2 v1 2026-06-23T07:26:44.813Z