Dispersion estimates for one-dimensional Schrödinger and Klein–Gordon equations revisited

I. E. Egorova   ; E. A. Kopylova   ; V. A. Marchenko   ; G. Teschl

Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 71 (2016) no. 3, pp. 391-415

Résumé

It is shown that for a one-dimensional Schrödinger operator with a potential whose first moment is integrable the elements of the scattering matrix are in the unital Wiener algebra of functions with integrable Fourier transforms. This is then used to derive dispersion estimates for solutions of the associated Schrödinger and Klein–Gordon equations. In particular, the additional decay conditions are removed in the case where a resonance is present at the edge of the continuous spectrum. Bibliography: 29 titles.

Détail

Keywords: Schrödinger equation, dispersion estimates, scattering.
Mots-clés : Klein–Gordon equation

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