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Formulas for An and Bn-solutions of WDVV equations

S. M. Natanzon

hep-tharXiv:hep-th/9904103

Abstract

The simplest non-trivial solutions of WDVV equations are An and Bn-potentials, which describe metrics of K.Saito on spaces of versal deformation of An and Bn-singularities. These are some polynomials, which were known for n≤slant 4. We find some recurrence relations, which give a possibility to find all An and Bn-potentials. In passing we give recurrence formulas for coefficients of dispersionless KP hierarchy.

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