Recurrent subspaces in Banach spaces

Abstract

We study the spaceability of the set of recurrent vectors $\text{Rec}(T)$ for an operator $T:X⟶X$ on a Banach space $X$. In particular: we find sufficient conditions for a quasi-rigid operator to have a recurrent subspace; when $X$ 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.

24 pages

References in corpus (10)

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• Recurrent Linear Operators
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• Linear Dynamical Systems
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Cited by in corpus (5)

• Two remarks on the set of recurrent vectors
• Invariant measures from locally bounded orbits
• Recurrence in collective dynamics: From the hyperspace to fuzzy dynamical systems
• Shifts on trees versus classical shifts in chain recurrence
• Frequently hypercyclic composition operators on the little Lipschitz space of a rooted tree