Some points of view on Grothendieck's inequalities

Fuente: arXiv
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Main Author: Christensen, Erik
Format: Preprint
Published: 2023
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_version_ 1866917630015700992
author Christensen, Erik
author_facet Christensen, Erik
contents Haagerup's proof of the non commutative little Grothendieck inequality raises some questions on the commutative little inequality, and it offers a new result on scalar matrices with non negative entries. The theory of completely bounded maps implies that the commutative Grothendieck inequality follows from the little commutative inequality, and that this passage may be given a geometric form as a relation between a pair of compact convex sets of positive matrices, which, in turn, characterizes the little constant in the complex case.
format Preprint
id arxiv_https___arxiv_org_abs_2312_09029
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Some points of view on Grothendieck's inequalities
Christensen, Erik
Functional Analysis
Information Theory
Mathematical Physics
Operator Algebras
15A39, 15A60, 46B28, 46B85, 46L07, 47L25
Haagerup's proof of the non commutative little Grothendieck inequality raises some questions on the commutative little inequality, and it offers a new result on scalar matrices with non negative entries. The theory of completely bounded maps implies that the commutative Grothendieck inequality follows from the little commutative inequality, and that this passage may be given a geometric form as a relation between a pair of compact convex sets of positive matrices, which, in turn, characterizes the little constant in the complex case.
title Some points of view on Grothendieck's inequalities
topic Functional Analysis
Information Theory
Mathematical Physics
Operator Algebras
15A39, 15A60, 46B28, 46B85, 46L07, 47L25
url https://arxiv.org/abs/2312.09029