One-point commuting difference operators of rank one
Algebraic Geometry
2015-09-30 v1 Mathematical Physics
math.MP
Exactly Solvable and Integrable Systems
Abstract
We consider one-point commuting difference operators of rank one. The coefficients of these operators depend on a functional parameter, shift operators being included only with positive degrees. We study these operators in the case of hyperelliptic spectral curve when the marked point coincides with the branch point. We construct examples of operators with polynomial and trigonometric coefficients. Moreover, difference operators with polynomial coefficients can be embedded in the differential ones with polynomial coefficients. This construction provides a new way of constructing commutative subalgebras in the first Weyl algebra.
Cite
@article{arxiv.1507.00527,
title = {One-point commuting difference operators of rank one},
author = {Gulnara S. Mauleshova and Andrey E. Mironov},
journal= {arXiv preprint arXiv:1507.00527},
year = {2015}
}
Comments
10 pages