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Almost periodic states on C*-algebras *)
Abstract : Given a C*-algebra O with a group of automorphisms, we define and study almost periodic states on O. A natural decomposition of such states is introduced and discussed.
*) These notes are a result of discussions between S. Dpolicher,…
*) These notes are a result of discussions between S. Dpolicher,…
Ergodic theory of differentiable dynamical systems
Abstract : If f is a C1+? diffeomorphism of a compact manifold M, we prove the existence of stable manifolds, almost verywhere with respect to every f-invariant probability measure on M. These stable manifolds are smooth but do not in general…
Mean entropy of States in classical statistical mechanics
Abstract : The equilibrium states for an infinite system of classical mechanics may be represented by states over Abelian C* algebras. We consider here continuous and lattice systems and define a mean entropy for their states. The properties of this…
Nicolaas H. Kuiper présentant le flexaèdre de Connely au séminaire Bourbaki
Directeur de l'IHES de 1971 à 1985