2012

Asymptotics of Random Lozenge Tilings via Gelfand-Tsetlin Schemes

Petrov, Leonid

Understand

A Gelfand-Tsetlin scheme of depth N is a triangular array with m integers at level m, m=1,...,N, subject to certain interlacing constraints.

  • We study the ensemble of uniformly random Gelfand-Tsetlin schemes with arbitrary fixed N-th row.
  • We obtain an explicit double contour integral expression for the determinantal correlation kernel of this ensemble (and also of its q-deformation).
  • This provides new tools for asymptotic analysis of uniformly random lozenge tilings of polygons on the triangular lattice; or, equivalently, of random stepped surfaces.

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