The Rotation Number for the Generalized Kronig–Penney Hamiltonians |
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| Authors: | Hiroaki Niikuni |
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| Affiliation: | (1) Department of Mathematics and Information Sciences, Tokyo Metropolitan University, Minami-Ohsawa 1-1, 192-0397 Hachioji, Tokyo, Japan |
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| Abstract: | We discuss the one-dimensional Schr?dinger operator with generalized point interaction on a lattice. We give a characterization of the band edges of its spectrum by the rotation number. Submitted: December 18, 2006. Accepted: February 23, 2007. |
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