A Duflo-Moore theorem for ergodic group actions on semifinite von Neumann algebras

Fuente: arXiv
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Autores principales: Enstad, Ulrik, Wendt, Hannes
Formato: Preprint
Publicado: 2025
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author Enstad, Ulrik
Wendt, Hannes
author_facet Enstad, Ulrik
Wendt, Hannes
contents We prove a generalization of the orthogonality relations of Duflo and Moore for ergodic, trace-preserving group actions on von Neumann algebras that are integrable in a suitable sense. We also obtain convolution inequalities that generalize both Young's inequality for convolution on locally compact groups and inequalities for operator-operator convolutions in Werner's quantum harmonic analysis.
format Preprint
id arxiv_https___arxiv_org_abs_2508_15575
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Duflo-Moore theorem for ergodic group actions on semifinite von Neumann algebras
Enstad, Ulrik
Wendt, Hannes
Operator Algebras
Functional Analysis
We prove a generalization of the orthogonality relations of Duflo and Moore for ergodic, trace-preserving group actions on von Neumann algebras that are integrable in a suitable sense. We also obtain convolution inequalities that generalize both Young's inequality for convolution on locally compact groups and inequalities for operator-operator convolutions in Werner's quantum harmonic analysis.
title A Duflo-Moore theorem for ergodic group actions on semifinite von Neumann algebras
topic Operator Algebras
Functional Analysis
url https://arxiv.org/abs/2508.15575