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Physics  2014 

Enumerative geometry, tau-functions and Heisenberg-Virasoro algebra

DOI: 10.1007/s00220-015-2379-8

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Abstract:

In this paper we establish relations between three enumerative geometry tau-functions, namely the Kontsevich-Witten, Hurwitz and Hodge tau-functions. The relations allow us to describe the tau-functions in terms of matrix integrals, Virasoro constraints and Kac-Schwarz operators. All constructed operators belong to the algebra (or group) of symmetries of the KP hierarchy.

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