a Dipartimento di Fisica, Universitá di Lecce, 73100, Lecce, Italy
b INFN, Sezione di Lecce, 73100, Lecce, Italy
Abstract:
Generalizations of the Weierstrass formulae to surface immersed into
4,
4 and into multidimensional Riemann spaces are proposed. Integrable deformations of surfaces in these spaces via the modified Veselov-Novikov equation are discussed.