On one-parametric families of Backlund transformations
Sergei Igonin, Joseph Krasil'shchik
Abstract
In the context of the cohomological deformation theory, infinitesimal description of one-parametric families of Backlund transformations of special type including classical examples is given. It is shown that any family of such a kind evolves in the direction of a nonlocal symmetry shadow.
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