Fay-like identities of the Toda Lattice Hierarchy and its dispersionless limit
classification
🌊 nlin.SI
hep-th
keywords
dispersionlessfay-likehierarchyidentitiestodalatticelimitbilinear
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In this paper, we derive the Fay-like identities of tau function for the Toda lattice hierarchy from the bilinear identity. We prove that the Fay-like identities are equivalent to the hierarchy. We also show that the dispersionless limit of the Fay-like identities are the dispersionless Hirota equations of the dispersionless Toda hierarchy.
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