On the full range of Zippin and inclusion indices of rearrangement-invariant spaces

Eugene Shargorodsky, Guillermo P. Curbera, Oleksiy Karlovych*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Let X be a rearrangement-invariant space on [0, 1]. It is known that its Zippin indices β̲ X,β¯ X and its inclusion indices γ XX are related as follows: 0≤β̲ X≤1/γ X≤1/δ X≤β¯ X≤1. We show that given β̲,β¯∈[0,1] and γ,δ∈[1,∞] satisfying β̲≤1/γ≤1/δ≤β¯, there exists a rearrangement-invariant space X such that β̲ X=β̲, β¯ X=β¯ and γ X=γ, δ X=δ.

Original languageEnglish
Article number93
Number of pages17
JournalRevista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas
Volume118
Issue number3
Early online date17 Apr 2024
DOIs
Publication statusPublished - 17 Apr 2024

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