Second-order approximate symmetry classi
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Zhiyong Zhang; Ben Gao; Yufu Chen
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Article
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2011
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Elsevier Science
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English
β 262 KB
A complete second-order approximate symmetry classification of a class of perturbed nonlinear wave equations with a arbitrary function is performed by means of the method originated from Fushchich and Shtelen. An optimal system of one-dimensional subalgebras is given. Based on the Lie symmetry reduc