Interacting Particle Systems and Jacobi Style Identities

Márton Balázs, Dr. Dan Fretwell, Jessica Jay

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    We consider the family of nearest neighbour interacting particle systems on $\mathbb{Z}$ allowing $0$, $1$ or $2$ particles at a site. We parametrize a wide subfamily of processes exhibiting product blocking measure and show how this family can be "stood up" in the sense of Bal\'azs and Bowen (2018). By comparing measures we prove new three variable Jacobi style identities, related to counting certain generalised Frobenius partitions with a $2$-repetition condition. By specialising to specific processes we produce two variable identities that are shown to relate to Jacobi triple product and various other identities of combinatorial significance. The family of $k$-exclusion processes for arbitrary $k$ are also considered and are shown to give similar Jacobi style identities relating to counting generalised Frobenius partitions with a $k$-repetition condition.
    Original languageEnglish
    Article number48
    Number of pages39
    JournalResearch in the Mathematical Sciences
    Issue number3
    Publication statusPublished - 21 Jul 2022


    • math.PR
    • math.CO
    • math.NT
    • 60K35, 11P84, 05A19


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