A global Riemann-Hilbert problem for two-dimensional inverse scattering at fixed energy

We develop the Riemann-Hilbert problem approach to in- verse scattering for the two-dimensional Schr odinger equation at xed energy. We obtain global or generic versions of the key results of this approach for the case of positive energy and compactly supported poten- tials. In particular, we do not...

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Bibliographic Details
Main Author: Lakshtanov, Evgeny L. (author)
Other Authors: Novikov, Roman G. (author), Vainberg, Boris R. (author)
Format: article
Language:eng
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/10773/16608
Country:Portugal
Oai:oai:ria.ua.pt:10773/16608
Description
Summary:We develop the Riemann-Hilbert problem approach to in- verse scattering for the two-dimensional Schr odinger equation at xed energy. We obtain global or generic versions of the key results of this approach for the case of positive energy and compactly supported poten- tials. In particular, we do not assume that the potential is small or that Faddeev scattering solutions do not have singularities (i.e. we allow the Faddeev exceptional points to exist). Applications of these results to the Novikov-Veselov equation are also considered.