Abstract:
Frobenius manifolds (solutions of WDVV equations) in canonical coordinates are determined by the system of Darboux–Egoroff equations. This system of partial differential equations appears as a specific subset of the n-component KP hierarchy. KP representation theory and the related Sato infinite Grassmannian are used to construct solutions of this Darboux–Egoroff system and the related Frobenius manifolds. Finally we show that for these solutions Dubrovin's isomonodromy tau-function can be expressed in the KP tau-function.
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Received: 1 September 1998 / Accepted: 7 March 1999
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van de Leur, J., Martini, R. The Construction of Frobenius Manifolds¶from KP tau-Functions. Comm Math Phys 205, 587–616 (1999). https://doi.org/10.1007/s002200050691
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DOI: https://doi.org/10.1007/s002200050691