Extremal invariant states

Collection : Ruelle, David

Auteur(e.s) : RUELLE

Date : 1966

Description : Abstract : A number of results are derived which are pertinent to the description of physical systems by states on C*-algebras invariants under a symmetry group. In particular an integral decomposition relevant to the study of lower symmetry is obtained which is occur in equilibrium statistical mechanics as existence of crystals, ferromagnetic states, etc... A characterization is given of strongly clustering euclidean invariant states, and it is shown that they cannot be decomposed into states of lower symmetry.

Sujet(s) : INVARIANTS

Source : P/66/01

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