Bispectrality of KP Solitons

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dc.creatorKasman, Alex
dc.date1998-06-04
dc.date.accessioned2026-07-07T04:32:25Z
dc.date.available2026-07-07T04:32:25Z
dc.descriptionIt is by now well known that the wave functions of rational solutions to the KP hierarchy (those which can be achieved as limits of the pure n-soliton solutions) satisfy an additional eigenvalue equation for ordinary differential operators in the spectral parameter. This property is known as ``bispectrality'' and has proved to be both interesting and useful. In this note, it is shown that certain (non-rational) soliton solutions of the KP hierarchy satisfy an eigenvalue equation for a non-local operator constructed by composing ordinary differential operators in the spectral parameter with translation operators in the spectral parameter, and therefore have a form of bispectrality as well. Considering the results relating ordinary bispectrality to the self-duality of the rational Calogero-Moser particle system, it seems likely that this new form of bispectrality should be related to the duality of the Ruijsenaars system.
dc.description9 pages, no figures, to appear in Inverse Problems
dc.identifierhttps://arxiv.org/abs/math-ph/9806001
dc.identifierhttp://arxiv.org/abs/math-ph/9806001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/58182
dc.subjectMathematical Physics
dc.subjectQuantum Algebra
dc.subjectSpectral Theory
dc.subjectExactly Solvable and Integrable Systems
dc.subject35Q53 47B39 58F07
dc.titleBispectrality of KP Solitons
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