Frobenius manifold structure on orbit space of Jacobi groups; Part II

Exploiting the results of Part I, in the Al case we identify the generators of the algebra of Jacobi forms with the moduli of Hurwitz spaces of meromorphic functions over elliptic curves; then we construct a Frobenius structure on it, computing the free energy and the flat coordinates of the corresponding solution to WDVV equations of associativity. Several examples are given. In the G(2) case we find two independent Frobenius structures and we compute the corresponding free energies and flat coordinates.