Composition ideals of Lip-Linear operators and a Hilbert space characterization

Fuente: arXiv
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Main Authors: Ferradi, Athmane, Saadi, Khalil
Format: Preprint
Published: 2025
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author Ferradi, Athmane
Saadi, Khalil
author_facet Ferradi, Athmane
Saadi, Khalil
contents In this paper, we investigate classes of Lip-linear operators constructed using the composition ideal method. We focus on two fundamental linear operator ideals, $p$-summing and strongly $p$-summing operators, and extend them to define the corresponding classes of Lip-linear operators. Several key results are established, including a characterization theorem for Hilbert spaces originally due to Kwapień. Specifically, we show that a Banach space $F$ is isomorphic to a Hilbert space if and only if every factorable strongly $p$-summing Lip-linear operator with values in $F$ is Cohen strongly $p$-summing.
format Preprint
id arxiv_https___arxiv_org_abs_2507_04492
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Composition ideals of Lip-Linear operators and a Hilbert space characterization
Ferradi, Athmane
Saadi, Khalil
Functional Analysis
47B10, 46B28, 47L20
In this paper, we investigate classes of Lip-linear operators constructed using the composition ideal method. We focus on two fundamental linear operator ideals, $p$-summing and strongly $p$-summing operators, and extend them to define the corresponding classes of Lip-linear operators. Several key results are established, including a characterization theorem for Hilbert spaces originally due to Kwapień. Specifically, we show that a Banach space $F$ is isomorphic to a Hilbert space if and only if every factorable strongly $p$-summing Lip-linear operator with values in $F$ is Cohen strongly $p$-summing.
title Composition ideals of Lip-Linear operators and a Hilbert space characterization
topic Functional Analysis
47B10, 46B28, 47L20
url https://arxiv.org/abs/2507.04492