Abstract:
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.
Citation:
A. E. Mironov, A. Nakayashiki, “Discretization of Baker–Akhiezer modules and commuting difference operators in several discrete variables”, Tr. Mosk. Mat. Obs., 74, no. 2, MCCME, M., 2013, 317–338; Trans. Moscow Math. Soc., 74 (2013), 261–279