Geodesic
Levels of the Schrödinger operator with a perturbed non-local potential
Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta, no. 1 (2006), pp. 98-104 Cet article a éte moissonné depuis la source Math-Net.Ru

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We investigate the one-dimensional Schrödinger operator with a potential that is a sum of a local potential and a two-rank operator. We prove that this Schrödinger operator has the unique level in the neighborhood of zero. The asimptotic behaviour of this level is investigated. 
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     author = {M. S. Smetanina},
     title = {Levels of the {Schr\"odinger} operator with a perturbed non-local potential},
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M. S. Smetanina. Levels of the Schrödinger operator with a perturbed non-local potential. Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta, no. 1 (2006), pp. 98-104. http://geodesic.mathdoc.fr/item/IIMI_2006_1_a6/

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[3] Smetanina M. S., “Asimptotika urovnei odnomernogo operatora Shredingera s nelokalnym potentsialom”, Izvestiya In-ta matem. i inform. UdGU. Izhevsk, 2005, no. 1 (31), 99–106

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