Polynomial numerical index with respect to a norm-one polynomial

Fuente: arXiv
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Auteurs principaux: Bertoloto, Fábio J., Santos, Elisa R.
Format: Preprint
Publié: 2025
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author Bertoloto, Fábio J.
Santos, Elisa R.
author_facet Bertoloto, Fábio J.
Santos, Elisa R.
contents In this paper, we introduce the polynomial numerical index of a pair of Banach spaces with respect to a norm-one polynomial. This index generalizes the concept of polynomial numerical index defined by Y. S. Choi et al. in 2006 and extends to polynomials the notion of numerical index with respect to an operator, introduced by M. A. Ardalani in 2014. We investigate several properties of this index and present examples.
format Preprint
id arxiv_https___arxiv_org_abs_2512_20439
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Polynomial numerical index with respect to a norm-one polynomial
Bertoloto, Fábio J.
Santos, Elisa R.
Functional Analysis
46G25 (Primary), 47A12, 46B20 (Secondary)
In this paper, we introduce the polynomial numerical index of a pair of Banach spaces with respect to a norm-one polynomial. This index generalizes the concept of polynomial numerical index defined by Y. S. Choi et al. in 2006 and extends to polynomials the notion of numerical index with respect to an operator, introduced by M. A. Ardalani in 2014. We investigate several properties of this index and present examples.
title Polynomial numerical index with respect to a norm-one polynomial
topic Functional Analysis
46G25 (Primary), 47A12, 46B20 (Secondary)
url https://arxiv.org/abs/2512.20439