Abstract
We describe a method for constructing classical integrable models in a (2+1)-dimensional discrete spacetime based on the functional tetrahedron equation, an equation that makes the symmetries of a model obvious in a local form. We construct a very general “block-matrix model,” find its algebraic-geometric solutions, and study its various particular cases. We also present a remarkably simple quantization scheme for one of those cases.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 117, No. 3, pp. 370–384, December, 1998.
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Kashaev, R.M., Korepanov, I.G. & Sergeev, S.M. Functional tetrahedron equation. Theor Math Phys 117, 1402–1413 (1998). https://doi.org/10.1007/BF02557179
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DOI: https://doi.org/10.1007/BF02557179