English

Infinite dimensional spaces consisting of sequences that do not converge to zero

Functional Analysis 2025-05-07 v1

Abstract

Given a map f ⁣:EFf \colon E \longrightarrow F between Banach spaces (or Banach lattices), a set AA of EE-valued bounded sequences, xA{\bf x} \in A and a vector topology τ\tau on FF, we investigate the existence of an infinite dimensional Banach space (or Banach lattice) containing a subsequence of x{\bf x} and consisting, up to the origin, of sequences (xj)j=1(x_j)_{j=1}^\infty belonging to AA such that (f(xj))j=1(f(x_j))_{j=1}^\infty does not converge to zero with respect to τ\tau. The applications we provide encompass the improvement of known results, as well as new results, concerning Banach spaces/Banach lattices not satisfying classical properties and linear/nonlinear maps not belonging to well studied classes.

Keywords

Cite

@article{arxiv.2505.03041,
  title  = {Infinite dimensional spaces consisting of sequences that do not converge to zero},
  author = {Mikaela Aires and Geraldo Botelho},
  journal= {arXiv preprint arXiv:2505.03041},
  year   = {2025}
}

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18 pages