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Dispersionless version of the multicomponent KP hierarchy revisited (2404.10406v1)
Published 16 Apr 2024 in nlin.SI, math-ph, and math.MP
Abstract: We revisit dispersionless version of the multicomponent KP hierarchy considered previously by Takasaki and Takebe. In contrast to their study, we do not fix any distinguished component treating all of them on equal footing. We obtain nonlinear equations for dispersionless tau-function (the F-function) and represent them using the trigonometric parametrization. In this trigonometric uniformization the equations considerably simplify and acquire a nice form.
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