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This article is cited in 13 scientific papers (total in 13 papers)
Some singular perturbations of periodic operators
D. I. Borisov Bashkir State Pedagogical University
Abstract:
We consider two examples of singular perturbations of a periodic differential
operator on the axis. The first example is a rapidly oscillating potential
with compact support, and the second example is the delta potential with
a small complex coupling constant. We investigate the structure and asymptotic
behavior of the spectrum of the perturbed operators in detail.
Keywords:
perturbation, periodic operator, spectrum, asymptotic expansion.
Received: 08.09.2006 Revised: 23.10.2006
Citation:
D. I. Borisov, “Some singular perturbations of periodic operators”, TMF, 151:2 (2007), 207–218; Theoret. and Math. Phys., 151:2 (2007), 614–624
Linking options:
https://www.mathnet.ru/eng/tmf6040https://doi.org/10.4213/tmf6040 https://www.mathnet.ru/eng/tmf/v151/i2/p207
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Abstract page: | 485 | Full-text PDF : | 261 | References: | 61 | First page: | 2 |
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