Kaptsov, O. V. Extension of the symmetry of evolution equations. (English. Russian original) Zbl 0505.35001 Sov. Math., Dokl. 25, 173-176 (1982); translation from Dokl. Akad. Nauk SSSR 262, 1056-1059 (1982). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document MSC: 35A30 Geometric theory, characteristics, transformations in context of PDEs 35G20 Nonlinear higher-order PDEs 35Q99 Partial differential equations of mathematical physics and other areas of application Keywords:extension of the symmetry; evolution equations; Lie-Bäcklund symmetry; Lax pair PDFBibTeX XMLCite \textit{O. V. Kaptsov}, Sov. Math., Dokl. 25, 173--176 (1982; Zbl 0505.35001); translation from Dokl. Akad. Nauk SSSR 262, 1056--1059 (1982)