Journal
JOURNAL OF SPECTRAL THEORY
Volume 5, Issue 4, Pages 663-696Publisher
EUROPEAN MATHEMATICAL SOC
DOI: 10.4171/JST/110
Keywords
Discrete Schrodinger equation; discrete wave equation; dispersive decay; scattering theory
Categories
Funding
- Austrian Science Fund (FWF) [Y330, M1329]
- RFBR grants
- Austrian Science Fund (FWF) [P27492] Funding Source: Austrian Science Fund (FWF)
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We derive dispersion estimates for solutions of the one-dimensional discrete perturbed Schrodinger and wave equations. In particular, we improve upon previous works and weaken the conditions on the potentials. To this end we also provide new results concerning scattering for one-dimensional discrete perturbed Schrodinger operators which are of independent interest. Most notably we show that the reflection and transmission coefficients belong to the Wiener algebra.
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