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Spin generalizations of the Benjamin-Ono equation
KTH, School of Engineering Sciences (SCI), Physics, Condensed Matter Theory.ORCID iD: 0000-0001-8039-7949
KTH, School of Engineering Sciences (SCI), Physics, Condensed Matter Theory. Stockholm Univ, S-10691 Stockholm, Sweden..ORCID iD: 0000-0001-7481-2245
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).ORCID iD: 0000-0001-6191-7769
2022 (English)In: Letters in Mathematical Physics, ISSN 0377-9017, E-ISSN 1573-0530, Vol. 112, no 3, article id 50Article in journal (Refereed) Published
Abstract [en]

We present new soliton equations related to the A-type spin Calogero-Moser (CM) systems introduced by Gibbons and Hermsen. These equations are spin generalizations of the Benjamin-Ono (BO) equation and the recently introduced non-chiral intermediate long-wave (ncILW) equation. We obtain multi-soliton solutions of these spin generalizations of the BO equation and the ncILW equation via a spin-pole ansatz where the spin-pole dynamics is governed by the spin CM system in the rational and hyperbolic cases, respectively. We also propose physics applications of the new equations, and we introduce a spin generalization of the standard intermediate long-wave equation which interpolates between the matrix Korteweg-de Vries equation, the Heisenberg ferromagnet equation, and the spin BO equation.

Place, publisher, year, edition, pages
Springer Nature , 2022. Vol. 112, no 3, article id 50
Keywords [en]
Soliton equations, Spin Calogero-Moser systems, Exact solutions, Benjamin-Ono-type equations
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-313698DOI: 10.1007/s11005-022-01540-3ISI: 000801181300001Scopus ID: 2-s2.0-85130922979OAI: oai:DiVA.org:kth-313698DiVA, id: diva2:1667454
Note

QC 20220610

Available from: 2022-06-10 Created: 2022-06-10 Last updated: 2023-06-08Bibliographically approved

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Berntson, Björn K.Langmann, EdwinLenells, Jonatan

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