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Characterizing the metric compactification of Lp spaces by random measures

  • Armando W. Gutiérrez*
  • *Corresponding author for this work
  • Aalto University

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We present a complete characterization of the metric compactification of Lp spaces for 1 ≤ p< ∞. Each element of the metric compactification of Lp is represented by a random measure on a certain Polish space. By way of illustration, we revisit the Lp-mean ergodic theorem for 1 < p< ∞, and Alspach’s example of an isometry on a weakly compact convex subset of L1 with no fixed points.

Original languageEnglish
Pages (from-to)227-243
JournalAnnals of Functional Analysis
Volume11
Issue number2
DOIs
Publication statusPublished - 1 Apr 2020
MoE publication typeA1 Journal article-refereed

Funding

Open access funding provided by Aalto University. The author is very grateful to Prof. Anders Karlsson, Prof. Kalle Kytölä, and Prof. Olavi Nevanlinna for many valuable discussions and suggestions. The author is also thankful to the anonymous referees for valuable suggestions that improved the presentation of this paper. This work was supported by the Academy of Finland, Grant No. 288318.

Keywords

  • Banach spaces
  • horofunction
  • metric compactification
  • metric functional
  • random measure

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