A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions

The Baker-Akhiezer (BA) function theory was successfully developed in the mid-1970s. This theory brought very interesting and important results in the spectral theory of almost periodic operators and the theory of completely integrable nonlinear equations, such as the Korteweg-de Vries equation, the...

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Опубліковано в: :Symmetry, Integrability and Geometry: Methods and Applications
Дата:2018
Автор: Kotlyarov, V.P.
Формат: Стаття
Мова:English
Опубліковано: Інститут математики НАН України 2018
Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/209768
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions / V.P. Kotlyarov // Symmetry, Integrability and Geometry: Methods and Applications. — 2018. — Т. 14. — Бібліогр.: 64 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id nasplib_isofts_kiev_ua-123456789-209768
record_format dspace
spelling Kotlyarov, V.P.
2025-11-26T11:26:16Z
2018
A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions / V.P. Kotlyarov // Symmetry, Integrability and Geometry: Methods and Applications. — 2018. — Т. 14. — Бібліогр.: 64 назв. — англ.
1815-0659
2010 Mathematics Subject Classification: 34L25; 34M50; 35F31; 35Q15; 35Q51
arXiv: 1802.01622
https://nasplib.isofts.kiev.ua/handle/123456789/209768
https://doi.org/10.3842/SIGMA.2018.082
The Baker-Akhiezer (BA) function theory was successfully developed in the mid-1970s. This theory brought very interesting and important results in the spectral theory of almost periodic operators and the theory of completely integrable nonlinear equations, such as the Korteweg-de Vries equation, the nonlinear Schrödinger equation, the sine-Gordon equation, Kadomtsev-Petviashvili equation. Subsequently, the theory was reproduced for the Ablowitz-Kaup-Newell-Segur (AKNS) hierarchies. However, extensions of the Baker-Akhiezer function for the Maxwell-Bloch (MB) system or for the Karpman-Kaup equations, which contain prescribed weight functions characterizing inhomogeneous broadening of the main frequency, are unknown. The main goal of the paper is to give a such of extension associated with the Maxwell-Bloch equations. Using different Riemann-Hilbert problems posed on the complex plane with a finite number of cuts, we propose such a matrix function that has a unit determinant and takes an explicit form through Cauchy integrals, hyperelliptic integrals, and theta functions. The matrix BA function solves the AKNS equations (the Lax pair for the MB system) and generates a quasi-periodic finite-gap solution to the Maxwell-Bloch equations. The suggested function will be useful in the study of the long-time asymptotic behavior of solutions of different initial-boundary value problems for the MB equations using the Deift-Zhou method of steepest descent and for an investigation of rogue waves of the Maxwell-Bloch equations.
The author thanks the referees for careful reading of the manuscript and valuable recommendations.
en
Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions
Article
published earlier
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
title A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions
spellingShingle A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions
Kotlyarov, V.P.
title_short A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions
title_full A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions
title_fullStr A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions
title_full_unstemmed A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions
title_sort matrix baker-akhiezer function associated with the maxwell-bloch equations and their finite-gap solutions
author Kotlyarov, V.P.
author_facet Kotlyarov, V.P.
publishDate 2018
language English
container_title Symmetry, Integrability and Geometry: Methods and Applications
publisher Інститут математики НАН України
format Article
description The Baker-Akhiezer (BA) function theory was successfully developed in the mid-1970s. This theory brought very interesting and important results in the spectral theory of almost periodic operators and the theory of completely integrable nonlinear equations, such as the Korteweg-de Vries equation, the nonlinear Schrödinger equation, the sine-Gordon equation, Kadomtsev-Petviashvili equation. Subsequently, the theory was reproduced for the Ablowitz-Kaup-Newell-Segur (AKNS) hierarchies. However, extensions of the Baker-Akhiezer function for the Maxwell-Bloch (MB) system or for the Karpman-Kaup equations, which contain prescribed weight functions characterizing inhomogeneous broadening of the main frequency, are unknown. The main goal of the paper is to give a such of extension associated with the Maxwell-Bloch equations. Using different Riemann-Hilbert problems posed on the complex plane with a finite number of cuts, we propose such a matrix function that has a unit determinant and takes an explicit form through Cauchy integrals, hyperelliptic integrals, and theta functions. The matrix BA function solves the AKNS equations (the Lax pair for the MB system) and generates a quasi-periodic finite-gap solution to the Maxwell-Bloch equations. The suggested function will be useful in the study of the long-time asymptotic behavior of solutions of different initial-boundary value problems for the MB equations using the Deift-Zhou method of steepest descent and for an investigation of rogue waves of the Maxwell-Bloch equations.
issn 1815-0659
url https://nasplib.isofts.kiev.ua/handle/123456789/209768
citation_txt A Matrix Baker-Akhiezer Function Associated with the Maxwell-Bloch Equations and their Finite-Gap Solutions / V.P. Kotlyarov // Symmetry, Integrability and Geometry: Methods and Applications. — 2018. — Т. 14. — Бібліогр.: 64 назв. — англ.
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