Multiplicity free actions, birth and death processes on partitions, and Biane's quantum Ornstein-Uhlenbeck semigroups

2019/05/29 by Wojciech Matysiak, Matysiak, Wojciech, Marcin Świeca +1
Mathematics · #05A10 #22E30 #FOS: Mathematics #Primary: 60J25 #Probability (math.PR) #Representation Theory (math.RT) #math.PR #math.RT #msc:05A10 #msc:22E30 #msc:46L53 #msc:60J25 #secondary: 46L53

paper · pdf · doi:10.48550/arxiv.1905.12263

arxiv created 2019/05/29 · arxiv updated 2019/05/30

Abstract

We introduce a family of multivariate continuous-time pure birth and pure death chains, with birth and death rates defined in terms of the generalized binomial coefficients for multiplicity free actions. The state spaces for some of the introduced processes are some sets of partitions (equivalently, Young diagrams). The chains turn out to be the classical Markov processes obtained by restricting Biane's quantum Ornstein-Uhlenbeck semigroups to commutative C*-algebras related to Gelfand pairs built on Heisenberg groups.

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