Brief Communications

Semiclassical Approximation for the Non-Self-Adjoint Sturm–Liouville Problem with the Potential $q(x)=x^4-a^2x^2$

V. I. Pokotilo

M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics

Keywords: semiclassical approximation, Sturm–Liouville problem, differential operator, discrete spectrum, Stokes graph.

Received: 24.10.2008

DOI: 10.4213/mzm6914

 English version: Mathematical Notes, 2009, 85:5, 755–759

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