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Bibliographic Details
Main Author: Nowakowski, Piotr
Format: Preprint
Published: 2022
Subjects:
Online Access:https://arxiv.org/abs/2208.05904
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Table of Contents:
  • We consider the subspaces $c$, $\widehat{c}$, $S$ of $\ell^\infty$, where $\widehat{c}$ consists of almost convergent sequences, and $S$ consists of sequences whose arithmetic means of consecutive terms are convergent. We know that $c\subset \widehat{c} \subset S$. We examine the largeness of $c$ in $\widehat{c}$, $\widehat{c}$ in $S$ and $S$ in $\ell^\infty$. We will do it from the viewpoints of porosity, algebrability and measure.