Abstract
After a short exposition of the theory of local and nonlocal symmetries and conservation laws for systems of PDE’s, results on these and the recursion operator are listed for the system of PDE’s ux=vwx, vy=uwy, uv+wxx+wyy=0. In between the methods of computation are explained.
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van Bemmelen, T., Gragert, P.K.H. & Kersten, P.H.M. Symmetries and Conservation Laws of the System: ux= vwx, vy= u wy, uv+wxx+wyy=0. Acta Applicandae Mathematicae 47, 79–99 (1997). https://doi.org/10.1023/A:1005798508219
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DOI: https://doi.org/10.1023/A:1005798508219