On deformations of hyperbolic varieties

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

In this paper we study flat deformations of real subschemes of Pn, hyperbolic with respect to a fixed linear subspace, i.e., admit-ting a finite surjective and real fibered linear projection. We show that the subset of the corresponding Hilbert scheme consisting of such sub-schemes is closed and connected in the classical topology. Every smooth variety in this set lies in the interior of this set. Furthermore, we provide sufficient conditions for a hyperbolic subscheme to admit a flat deformation to a smooth hyperbolic subscheme. This leads to new examples of smooth hyperbolic varieties.

Details

Original languageEnglish
Pages (from-to)593-612
Number of pages20
JournalMoscow mathematical journal
Volume21
Issue number3
Publication statusPublished - 1 Jul 2021
Peer-reviewedYes

External IDs

Scopus 85109399836

Keywords

ASJC Scopus subject areas

Keywords

  • Deformations, Hilbert scheme, Hyperbolic variety