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JOURNALS // Zapiski Nauchnykh Seminarov POMI // Archive

Zap. Nauchn. Sem. POMI, 2021 Volume 509, Pages 71–88 (Mi znsl7180)

Five-vertex model and lozenge tilings of a hexagon with a dent

I. N. Burenev

St.Petesburg Department of Mathematics Institute, Fontanka 27, St.Petersburg 191011, Russia

Abstract: We consider the five-vertex model on a regular square lattice of the size $L \times M$ with boundary conditions fixed in such a way that configurations of the model are in one-to-one correspondence with the lozenge tilings of the hexagon with a dent. We obtain two determinant representations for the partition function. In the free-fermionic limit, this result implies some summation formulae for Schur functions.

Key words and phrases: five-vertex model, lozenge tilings, determinant representations, Yang–Baxter algebra.

UDC: 517

Received: 30.11.2021

Language: English



© Steklov Math. Inst. of RAS, 2024