English

The $\mathrm{GL}_n$-Connes-Marcolli Systems

Operator Algebras 2016-09-29 v1

Abstract

In this paper, we generalize the results of Laca, Larsen, and Neshveyev on the GL2\mathrm{GL}_2-Connes-Marcolli system to the GLn\mathrm{GL}_n systems. We introduce the GLn\mathrm{GL}_n-Connes-Marcolli systems and discuss the question of the existence and the classification of KMS equilibrium states at different inverse temperatures β\beta. In particular, using an ergodicity argument, we prove that in the range n1<βnn-1 <\beta\leq n, there is only one KMS state. We show that there are no KMS states for β<n1\beta<n-1 and not an integer, while we construct KMS states for integer values of β\beta in the range 1βn11\leq\beta\leq n-1, and we classify extremal KMS states for β>n\beta>n.

Cite

@article{arxiv.1609.08727,
  title  = {The $\mathrm{GL}_n$-Connes-Marcolli Systems},
  author = {Yunyi Shen},
  journal= {arXiv preprint arXiv:1609.08727},
  year   = {2016}
}
R2 v1 2026-06-22T16:03:37.382Z