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Colored line ensembles for stochastic vertex models

  • Amol Aggarwal [1] ; Alexei Borodin [2]
    1. [1] Columbia University

      Columbia University

      Estados Unidos

    2. [2] Massachusetts Institute of Technology

      Massachusetts Institute of Technology

      City of Cambridge, Estados Unidos

  • Localización: Selecta Mathematica, New Series, ISSN 1022-1824, Vol. 30, Nº. 5, 2024
  • Idioma: inglés
  • DOI: 10.1007/s00029-024-00989-5
  • Enlaces
  • Resumen

    • In this paper we assign a family of n coupled line ensembles to any Uq (sln+1) colored stochastic fused vertex model, which satisfies two properties. First, the joint law of their top curves coincides with that of the colored height functions for the vertex model. Second, the n line ensembles satisfy an explicit Gibbs property prescribing their laws if all but a few of their curves are conditioned upon. We further describe several examples of such families of line ensembles, including the ones for the colored stochastic sixvertex and q-boson models. The appendices (which may be of independent interest) include an explanation of how the Uq (sln+1) colored stochastic fused vertex model degenerates to the log-gamma polymer, and an effective rate of convergence of the colored stochastic six-vertex model to the colored ASEP.

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