A remark on deformations of Hurwitz Frobenius manifolds (Q707848)

This remark gives some general formulas for infinitesimal deformations of solutions of the Darboux-Egoroff system. As an applications the authors explain how Shramchenko's deformations of Frobenius manifold structures on Hurwitz spaces fit into the general formalism of Givental-van de Leur twisted loop group action on the space of semi-simple Frobenius manifolds. The results obtained in this paper are interesting.