Semi-commuting and commuting operators for the Heun family
arXiv:1705.05795 · doi:10.1134/S0040577918040025
Abstract
We derive the most general families of differential operators of first and second degree semi-commuting with the differential operators of the Heun class. Among these families we classify all those families commuting with the Heun class. In particular, we discover that a certain generalized Heun equation commutes with the Heun differential operator allowing us to construct the general solution to a complicated fourth order linear differential equation with variable coefficients which Maple 16 cannot solve.
arXiv comment15 pages
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