English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study 1-cohomology of discrete group actions on factors of type II1. Characterizations of Kazhdan’s property T and amenability for discrete groups in terms of cocycles and coboundaries are given, and we show that each of SL(n,Z), n ≥ 3, and Sp(n,Z), n ≥ 2, has a continuous family of mutually non-cocycle conjugate free actions on the AFD factor of type II1 as an application. We also introduce and compute entropy for discrete amenable group action on factors of type II1.

Cohomology of actions of discrete groups on factors of type II1

Cohomology of actions of discrete groups on factors of type II₁