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Symmetries of Sturm-Liouville equations and the Korteweg-de Vries equation. (English. Russian original) Zbl 0463.34021
Sov. Math., Dokl. 21, 488-492 (1980); translation from Dokl. Akad. Nauk SSSR 251, 557-562 (1980).

MSC:
34L99 Ordinary differential operators
35Q99 Partial differential equations of mathematical physics and other areas of application
34B27 Green’s functions for ordinary differential equations
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