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Sobolev norms of $L^2$-solutions to the nonlinear Schrödinger equation

Roman V. Bessonov and Sergey A. Denisov

Vol. 331 (2024), No. 2, 217–258
Abstract

We apply inverse spectral theory to study Sobolev norms of solutions to the nonlinear Schrödinger equation. For initial datum q0 L2() and s [1,0], we prove that there exists a conserved quantity which is equivalent to Hs()-norm of the solution.

Keywords
Dirac operators, NLSE, scattering, Sobolev norms
Mathematical Subject Classification
Primary: 35Q55
Milestones
Received: 1 February 2024
Revised: 2 August 2024
Accepted: 14 September 2024
Published: 30 October 2024
Authors
Roman V. Bessonov
St. Petersburg State University
St. Petersburg
Russia
St. Petersburg Department of Steklov Mathematical Institute
Russian Academy of Sciences
St. Petersburg
Russia
Sergey A. Denisov
Department of Mathematics
University of Wisconsin-Madison
Madison, WI
United States

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