This article is cited in 23 papers

Hidden symmetry of free fermion model. II. Partition function

V. V. Bazhanov, Yu. G. Stroganov


Abstract: It is shown that the partition function of the free fermion model on a plane lattice has a certain hidden symmetry. By means of a special elliptical parametrization for the Boltzmann vertex weights, the partition function corresponding to one lattice site (lattice-site partition function) is calculated and shown to be a meromorphic function of three complex variables.

Received: 12.06.1984

 English version: Theoretical and Mathematical Physics, 1985, 63:2, 519–527

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