Communications in Mathematical Physics

, Volume 112, Issue 4, pp 691–719

Dynamical entropy ofC* algebras and von Neumann algebras


  • A. Connes
    • IHES
  • H. Narnhofer
    • Institut für Theoretische PhysikUniversität Wien
  • W. Thirring
    • Institut für Theoretische PhysikUniversität Wien

DOI: 10.1007/BF01225381

Cite this article as:
Connes, A., Narnhofer, H. & Thirring, W. Commun.Math. Phys. (1987) 112: 691. doi:10.1007/BF01225381


The definition of the dynamical entropy is extended for automorphism groups ofC* algebras. As an example, the dynamical entropy of the shift of a lattice algebra is studied, and it is shown that in some cases it coincides with the entropy density.

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© Springer-Verlag 1987