Factorization of the Heun operator. (Factorisation de l’opérateur de Heun.) (French) Zbl 1102.34331
Summary: The factorization of the Heun operator (in polynomial form) is given in an exhaustive way. Six cases appear which are in relation with some \(F\)-homotopic transformations of the Heun equation.
MSC:
| 34M99 | Ordinary differential equations in the complex domain |
