Real-analytic solutions of the nonlinear Schrödinger equation

Domrin, A.

doi:10.1090/S0077-1554-2014-00236-3

Real-analytic solutions of the nonlinear Schrödinger equation
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by A. V. Domrin
Translated by: Christopher Hollings

Trans. Moscow Math. Soc. 2014, 173-183

DOI: https://doi.org/10.1090/S0077-1554-2014-00236-3

Published electronically: November 5, 2014

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Abstract:

We establish that the Riemann problem on the factorization of formal matrix-valued Laurent series subject to unitary symmetry has a solution. As an application, we show that any local real-analytic solution (in $x$ and $t$) of the focusing nonlinear Schrödinger equation has a real-analytic extension to some strip parallel to the $x$-axis and that in each such strip there exists a solution that cannot be extended further.

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