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JOURNALS // Symmetry, Integrability and Geometry: Methods and Applications // Archive

SIGMA, 2022 Volume 18, 083, 27 pp. (Mi sigma1879)

Markovianity and the Thompson Group $F$

Claus Köstlera, Arundhathi Krishnanb

a School of Mathematical Sciences, University College Cork, Cork, Ireland
b Department of Pure Mathematics, University of Waterloo, Ontario, Canada

Abstract: We show that representations of the Thompson group $F$ in the automorphisms of a noncommutative probability space yield a large class of bilateral stationary noncommutative Markov processes. As a partial converse, bilateral stationary Markov processes in tensor dilation form yield representations of $F$. As an application, and building on a result of Kümmerer, we canonically associate a representation of $F$ to a bilateral stationary Markov process in classical probability.

Keywords: noncommutative stationary Markov processes, representations of Thompson group $F$.

MSC: 46L53, 60J05, 60G09, 20M30

Received: April 8, 2022; in final form October 7, 2022; Published online October 27, 2022

Language: English

DOI: 10.3842/SIGMA.2022.083



Bibliographic databases:
ArXiv: 2204.03595


© Steklov Math. Inst. of RAS, 2024