Note on certain polynomial solutions of Heun’s equation and two confluent forms. (English) Zbl 0314.34010
MSC:
34A05 | Explicit solutions, first integrals of ordinary differential equations |
34B30 | Special ordinary differential equations (Mathieu, Hill, Bessel, etc.) |
26C05 | Real polynomials: analytic properties, etc. |
42C05 | Orthogonal functions and polynomials, general theory of nontrigonometric harmonic analysis |