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Título: C*-algebras, approximately proper equivalence relations and thermodynamic formalism
Autores: Exel, Ruy
Lopes, Artur Oscar
Fecha: 2011-01-15
2004
Publicador:
Fuente: Ver documento
Tipo: Artigo de periódico
Estrangeiro
Tema: C* Algebras
Termodinamica
Análise matemática : Espaço de Hausdorff : Estado KMS
Descripción: We introduce a non-commutative generalization of the notion of (approximately proper) equivalence relations and propose the construction of a ‘quotient space’. We then consider certain one-parameter groups of automorphisms of the resulting C*-algebra and prove the existence of KMS states at every temperature. In a model originating from thermodynamicswe prove that these states are unique as well. We also show a relationship between maximizing measures (the analogue of the Aubry–Mathermeasures for expanding maps) and ground states. In the last section we explore an interesting example of phase transitions.
Idioma: Inglés
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