Nonsingular Bernoulli actions of arbitrary Krieger type
Dynamical Systems
2022-10-12 v3 Group Theory
Operator Algebras
Abstract
We prove that every infinite amenable group admits Bernoulli actions of any possible Krieger type, including type and type . We obtain this result as a consequence of general results on the ergodicity and Krieger type of nonsingular Bernoulli actions with arbitrary base space , both for amenable and for nonamenable groups. Earlier work focused on two point base spaces , where type was proven not to occur.
Keywords
Cite
@article{arxiv.2005.06309,
title = {Nonsingular Bernoulli actions of arbitrary Krieger type},
author = {Tey Berendschot and Stefaan Vaes},
journal= {arXiv preprint arXiv:2005.06309},
year = {2022}
}
Comments
v3: minor revisions, final version, to appear in Analysis and PDE