Mathematics – Differential Geometry
Scientific paper
2001-08-24
Contemp. Math. 288 (2001), 129-148
Mathematics
Differential Geometry
18 pages, 5 figures, to appear in the AMS Contemporary Mathematics Series, "Proceedings of the Congress in memory of Alfred Gr
Scientific paper
We establish a correspondence between Darboux's special isothermic surfaces of type (A,0,C,D) and the solutions of the second order PDE : u\Delta(u)-|\nabla(u)|^{2}+\Phi^{4}=s, s \in R. We then use the classical Darboux transformation for isothermic surfaces to construct a B\"acklund transformation for this equation and prove a superposition formula for its solutions. As an application we discuss 1 and 2-soliton solutions and the corresponding surfaces.
Musso Emilio
Nicolodi Lorenzo
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