Noncommutative ergodic theory of higher rank lattices

Fuente: arXiv
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Main Author: Houdayer, Cyril
Format: Preprint
Published: 2021
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author Houdayer, Cyril
author_facet Houdayer, Cyril
contents We survey recent results regarding the study of dynamical properties of the space of positive definite functions and characters of higher rank lattices. These results have several applications to ergodic theory, topological dynamics, unitary representation theory and operator algebras. The key novelty in our work is a dynamical dichotomy theorem for equivariant faithful normal unital completely positive maps between noncommutative von Neumann algebras and the space of bounded measurable functions defined on the Poisson boundary of semisimple Lie groups.
format Preprint
id arxiv_https___arxiv_org_abs_2110_07708
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Noncommutative ergodic theory of higher rank lattices
Houdayer, Cyril
Operator Algebras
Dynamical Systems
Group Theory
Representation Theory
We survey recent results regarding the study of dynamical properties of the space of positive definite functions and characters of higher rank lattices. These results have several applications to ergodic theory, topological dynamics, unitary representation theory and operator algebras. The key novelty in our work is a dynamical dichotomy theorem for equivariant faithful normal unital completely positive maps between noncommutative von Neumann algebras and the space of bounded measurable functions defined on the Poisson boundary of semisimple Lie groups.
title Noncommutative ergodic theory of higher rank lattices
topic Operator Algebras
Dynamical Systems
Group Theory
Representation Theory
url https://arxiv.org/abs/2110.07708