Buryak A.,University of Amsterdam |
Buryak A.,Moscow State University |
Shadrin S.,University of Amsterdam |
Shadrin S.,Institute of System Research
Letters in Mathematical Physics | Year: 2010
In this note, we use the formalism of multi-KP hierarchies in order to give some general formulas for infinitesimal deformations of solutions of the Darboux-Egoroff system. As an application, we 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. © 2010 The Author(s).