English

Typicality of operators on Fr\'echet algebras admitting a hypercyclic algebra

Functional Analysis 2025-06-23 v1

Abstract

This paper is devoted to the study of typical properties (in the Baire Category sense) of certain classes of continuous linear operators acting on Fr\'echet algebras, endowed with the topology of pointwise convergence. Our main results show that within natural Polish spaces of continuous operators acting on the algebra H(C)H(\mathbb{C}) of entire functions on C\mathbb{C}, a typical operator supports a hypercyclic algebra. We also investigate the case of the complex Fr\'echet algebras X=p(N)X=\ell_{p}(\mathbb{N}), 1p<+1\le p<+\infty, or X=c0(N)X=c_{0}(\mathbb{N}) endowed with the coordinatewise product, and show that whenever M>1M>1, a typical operator on XX of norm less than or equal to MM admits a hypercyclic algebra.

Keywords

Cite

@article{arxiv.2312.08321,
  title  = {Typicality of operators on Fr\'echet algebras admitting a hypercyclic algebra},
  author = {William Alexandre and Clifford Gilmore and Sophie Grivaux},
  journal= {arXiv preprint arXiv:2312.08321},
  year   = {2025}
}

Comments

36 pages

R2 v1 2026-06-28T13:49:58.107Z