The strip of analyticity of reflectionless potentials
Анотація
We study the problem of the analytical extension of bounded reflectionless potentials for
the Schrödinger operator in the Hilbert space $L_2(\mathbb{R})$ and improve an estimate on the strip of
analyticity established by V. A. Marchenko.
Посилання
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V.A. Marchenko, The Cauchy problem for the KdV equation with nondecreasing initial data, in Whatintegrability?, Springer Ser. Nonlinear Dynam., Berlin: Springer, 1991, 273–318.
F. Calogero, A. Degasperis, Spectral transform and solitons: tools to solve and investigate nonlinear evolution equations, Amsterdam, New York: North-Holland, 1982.
R. Hryniv, B. Melnyk, Ya. Mykytyuk, Inverse scattering for reflectionless Schrödinger operators with integrable potentials and generalized soliton solutions for the KdV equation, Ann. Henri Poincare, 22 (2021), 487–527. https://doi.org/10.1007/s00023-020-01000-5
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