Quadratic pencil of Schrodinger operators with spectral singularities: Discrete spectrum and principal functions

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Bairamov E., Cakar O., Celebi A.

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, vol.216, no.1, pp.303-320, 1997 (SCI-Expanded) identifier identifier


In this article we investigated the spectrum of the quadratic pencil of Schrodinger operators L(lambda) generated in L-2(R+) by the equation