Topological entropy of some automorphisms of reduced amalgamated free product C*-algebras Academic Article

abstract

• Certain classes of automorphisms of reduced amalgamated free products of C*-algebras are shown to have Brown-Voiculescu topological entropy zero. Also, for automorphisms of exact C*-algebras, the Connes-Narnhofer-Thirring entropy is shown to be bounded above by the Brown-Voiculescu entropy. These facts are applied to generalize Strmer's result about the entropy of automorphisms of the II1-factor of a free group.

authors

• Dykema, Kenneth

published proceedings

• ERGODIC THEORY AND DYNAMICAL SYSTEMS

author list (cited authors)

• Dykema, K. J.

complete list of authors

• Dykema, KJ

publication date

• December 2001

published in

• Ergodic Theory and Dynamical Systems  Journal

start page

• 1683

end page

• 1693

volume

• 21

issue

• 6