Geodesic
Discretization of Baker–Akhiezer modules and commuting difference operators in several discrete variables
Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 74 (2013) no. 2, pp. 317-338 
A. E. Mironov; A. Nakayashiki. Discretization of Baker–Akhiezer modules and commuting difference operators in several discrete variables. Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 74 (2013) no. 2, pp. 317-338. http://geodesic.mathdoc.fr/item/MMO_2013_74_2_a6/
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     author = {A. E. Mironov and A. Nakayashiki},
     title = {Discretization of {Baker{\textendash}Akhiezer} modules and commuting difference operators in several discrete variables},
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     pages = {317--338},
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

We introduce the notion of discrete Baker–Akhiezer (DBA) modules, which are modules over the ring of difference operators, as a discretization of Baker–Akhiezer modules, which are modules over the ring of differential operators. We use it to construct commuting difference operators with matrix coefficients in several discrete variables.

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