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Unconditional basis property of exponentials with a gap in the spectrum

โœ Scribed by A. M. Minkin


Book ID
105119504
Publisher
SP MAIK Nauka/Interperiodica
Year
1992
Tongue
English
Weight
322 KB
Volume
52
Category
Article
ISSN
0001-4346

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๐Ÿ“œ SIMILAR VOLUMES


Gap structures in the phonon spectrum of
โœ M.P. Soerensen; T. Schneider ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 536 KB

The phonon spectrum of a one-dimensional lattice with masses varying incommensurately with the underlying lattice is studied by a discrete version of a multiple-scale perturbation theory. From the resonances in the higher order correction terms we determine the location of the gaps in the spectrum.