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- W4308614634 abstract "We consider the one-dimensional discrete Schrodinger operator with complex-valued sparse periodic potential. The spectrum for a complex-valued periodic potential is a complicated compact set in the complex plane represented by real intersections of algebraic curves determined by a discriminant. We represent the discriminant by Chebyshev polynomials and use perturbations of the discriminant to study the spectrum." @default.
- W4308614634 created "2022-11-13" @default.
- W4308614634 creator A5063042396 @default.
- W4308614634 date "2022-11-07" @default.
- W4308614634 modified "2023-09-23" @default.
- W4308614634 title "Perturbation of discriminant for one-dimensional discrete Schrodinger operator with sparse periodic potential" @default.
- W4308614634 doi "https://doi.org/10.48550/arxiv.2211.03326" @default.
- W4308614634 hasPublicationYear "2022" @default.
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