Spectral Asymptotics for Schrödinger Ope
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P. Kurasov; J. Larson
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Article
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2002
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Elsevier Science
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English
⚖ 150 KB
Spectrum of the second-order differential operator with periodic point interactions in L 2 R is investigated. Classes of unitary equivalent operators of this type are described. Spectral asymptotics for the whole family of periodic operators are calculated. It is proven that the first several terms