Recurrent subspaces in Banach spaces
Abstract
We study the spaceability of the set of recurrent vectors for an operator on a Banach space . In particular: we find sufficient conditions for a quasi-rigid operator to have a recurrent subspace; when is a complex Banach space we show that having a recurrent subspace is equivalent to the fact that the essential spectrum of the operator intersects the closed unit disc; and we extend the previous result to the real case. As a consequence we obtain that: a weakly-mixing operator on a real or complex separable Banach space has a hypercyclic subspace if and only if it has a recurrent subspace. The results exposed exhibit a symmetry between the hypercyclic and recurrence spaceability theories showing that, at least for the spaceable property, hypercyclicity and recurrence can be treated as equals.
Cite
@article{arxiv.2212.04464,
title = {Recurrent subspaces in Banach spaces},
author = {Antoni López-Martínez},
journal= {arXiv preprint arXiv:2212.04464},
year = {2024}
}
Comments
24 pages