Wednesday, January 31, 2018

Phase transitions for KMS states in the Cuntz c-star algebra

Alexandre Baraviera
(Instituto de Matemática e Estatística - Universidade Federal do Rio Grande Sul)

Abstract: The purpose of this talk is to present some recent results about phase transitions in the Cuntz c-star algebra due to K. Thomsen. We would like to briefly review some of the main concepts of c-star algebras and their construction from a given grupoid. In the case of the Cuntz algebra, the grupoid is related to a symbolic dynamical system and so dynamical ideas are useful to describe the KMS states and how they depend from a certain parameter.

Wednesday, January 31, 2018
Time: 11h00
Room: C6.2.44, Faculdade de Ciências, UL