Abstract
We consider a special class of two-dimensional discrete equations defined by relations on elementary N × N squares, N > 2, of the square lattice ℤ2, and propose a new type of consistency conditions on cubic lattices for such discrete equations that is connected to bending elementary N × N squares, N > 2, in the cubic lattice ℤ3. For an arbitrary N we prove such consistency on cubic lattices for two-dimensional discrete equations defined by the condition that the determinants of values of the field at the points of the square lattice ℤ2 that are contained in elementary N × N squares vanish.
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Published in Russian in Trudy Matematicheskogo Instituta imeni V.A. Steklova, 2009, Vol. 266, pp. 202–217.
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Mokhov, O.I. Consistency on cubic lattices for determinants of arbitrary orders. Proc. Steklov Inst. Math. 266, 195–209 (2009). https://doi.org/10.1134/S0081543809030110
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DOI: https://doi.org/10.1134/S0081543809030110