Abstract : We present here two non-commutative situations where dynamical entropy estimates are possible. The first result is concerned with automorphisms of cross-products by an exact group that commute with the group action and generalizes the result known for amenable groups. The second is about continuous fields of C * -algebras and C(X)-automorphisms. Each result relies on explicit factorization via matrices.
https://hal-normandie-univ.archives-ouvertes.fr/hal-01876550 Contributor : emmanuel germainConnect in order to contact the contributor Submitted on : Tuesday, September 18, 2018 - 3:13:37 PM Last modification on : Tuesday, October 19, 2021 - 11:33:54 PM