Abstract
Conditional invariance of the nonlinear wave equation with respect to the infinite-dimensional, the conformal, and the Poincaré algebras is established.
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 43, No. 3, pp. 394–399, March, 1991.
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Fushchich, V.I., Serov, N.I. Conditional invariance of the nonlinear wave equation. Ukr Math J 43, 359–364 (1991). https://doi.org/10.1007/BF01670077
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DOI: https://doi.org/10.1007/BF01670077