English

Instability of rational and polynomial convexity

Complex Variables 2021-07-12 v3 Symplectic Geometry

Abstract

It is shown that rational and polynomial convexity of totally real submanifolds is in general unstable under perturbations that are CαC^\alpha-small for any H\"older exponent α<1\alpha<1. This complements the result of L{\o}w and Wold that these properties are C1C^1-stable.

Keywords

Cite

@article{arxiv.1911.09527,
  title  = {Instability of rational and polynomial convexity},
  author = {Stefan Nemirovski},
  journal= {arXiv preprint arXiv:1911.09527},
  year   = {2021}
}

Comments

V.1 - 4 pages, 1 figure; V.2 - details and comments added, 5 pages, 2 figures; V.3 - minor edits