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Nonfree actions of countable groups and their characters

โœ Scribed by A. M. Vershik


Publisher
Springer US
Year
2011
Tongue
English
Weight
567 KB
Volume
174
Category
Article
ISSN
1573-8795

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๐Ÿ“œ SIMILAR VOLUMES


The Spectrum of Completely Positive Entr
โœ A.H. Dooley; V.Ya. Golodets ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 189 KB

We prove that an ergodic free action of a countable discrete amenable group with completely positive entropy has a countable Lebesgue spectrum. Our approach is based on the Rudolph-Weiss result on the equality of conditional entropies for actions of countable amenable groups with the same orbits. Re