Spectre de l’équation de Schrödinger et méthode BKW. (French) Zbl 0468.34011

Publ. Math. Orsay 81.09, 74 p. (1981).


34L99 Ordinary differential operators
34E20 Singular perturbations, turning point theory, WKB methods for ordinary differential equations
35P20 Asymptotic distributions of eigenvalues in context of PDEs
81Q05 Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics