Weierstrass representations for surfaces in 4D spaces and their integrable deformations via DS hierarchy
B. G. Konopelchenko
Abstract
Generalized Weierstrass representations for generic surfaces conformally immersed into four-dimensional Euclidean and pseudo-Euclidean spaces of different signatures are presented. Integrable deformations of surfaces in these spaces generated by the Davey-Stewartson hierarchy of integrable equations are proposed. Willmore functional of a surface is invariant under such deformations.
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