Givental symmetries of Frobenius manifolds and multi-component KP tau-functions

Abstract

We establish a link between two different constructions of the action of the twisted loop group on the space of Frobenius structures. The first construction (due to Givental) describes the action of the twisted loop group on the partition functions of formal Gromov-Witten theories. The explicit formulas for the corresponding tangent action were computed by Y.-P. Lee. The second construction (due to van de Leur) describes the action of the same group on the space of Frobenius structures via the multi-component KP hierarchies. Our main theorem states that the genus zero restriction of the Y.-P. Lee formulas coincides with the tangent van de Leur action.

25 pages

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Cited by in corpus (8)

• A polynomial bracket for the Dubrovin--Zhang hierarchies
• Givental graphs and inversion symmetry
• A group action on Losev-Manin cohomological field theories
• A remark on deformations of Hurwitz Frobenius manifolds
• KP integrability of triple Hodge integrals. I. From Givental group to hierarchy symmetries
• On construction of symmetries and recursion operators from zero-curvature representations and the Darboux-Egoroff system
• Virasoro and KdV
• Fredholm Pfaffian $\tau$-functions for orthogonal isospectral and isomonodromic systems