Journal
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
Volume 498, Issue 2, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmaa.2021.124980
Keywords
Matrix spectral problem; Nonlocal reverse-spacetime integrable equation; Riemann-Hilbert problem; Inverse scattering transform; Soliton solution; Parity-time symmetry
Categories
Funding
- NSF [DMS-1664561]
- NSFC [11975145, 11972291]
- Natural Science Foundation for Colleges and Universities in Jiangsu Province [17 KJB 110020]
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This study analyzes a type of nonlocal reverse-spacetime integrable PT-symmetric mKdV equations by making nonlocal reductions and establishing associated Riemann-Hilbert problems. The solutions to Riemann-Hilbert problems in the reflectionless case enable the presentation of solitons to the equations.
We would like to analyze a kind of nonlocal reverse-spacetime integrable PT-symmetric multicomponent modified Korteweg-de Vires (mKdV) equations by making a group of nonlocal reductions, and establish their associated Riemann-Hilbert problems which determine generalized Jost solutions of higher-order matrix spectral problems. The Sokhotski-Plemelj formula is used to transform the associated Riemann-Hilbert problems into Gelfand-Levitan-Marchenko type integral equations. The Riemann-Hilbert problems in the reflectionless case are solved explicitly, and the resulting formulation of solutions enables us to present solitons to the nonlocal reverse-spacetime integrable PT-symmetric mKdV equations. (C) 2021 Elsevier Inc. All rights reserved.
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