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Bibliographic Details
Main Authors: Grelier, Guillaume, Martín, Jaime San
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2404.14939
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Table of Contents:
  • For any $p\in[1,\infty)$, we prove that the set of simple functions taking at most $k$ different values is proximinal in Böchner spaces $L^p(X)$ whenever $X$ is a dual Banach space with $w^*$-sequentially compact unit ball. With additional properties on $X$ and its norm, we show these sets are approximatively $w^*$-compact for $p\in(1,\infty)$ and even approximatively norm-compact under stronger hypothesis.