Discrete and Backlund (!) transformations of SDYM system
Abstract
Symmetry of SDYM equations for "physically restricted solution" with hermitian group element G=GH in representation of Yang is described. Such transformation DB pass some PRS to the new one of the same kind. Transformation contain 2NG arbirtrary functions of two independent arguments, where NG dimension of the gauge semi-simple algebra. These functions may be considered as additional parameters typical for Backlund aproach and by this reason we use term Backlund for this transformation.
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