A nonlinear analog of the WKB method and the method of the averaged Lagrangian

DOI10.1007/BF01086996zbMath0549.35105OpenAlexW2072841389MaRDI QIDQ800576

Yaroslav Kurylev

Publication date: 1984

Published in: Journal of Soviet Mathematics (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/188260

zbMATH Keywords

solvabilityKlein-Gordon equationWKB methodperiodic functionsaveraged Lagrangiancompletely integrable

Mathematics Subject Classification ID

Singular perturbations in context of PDEs (35B25) Partial differential equations of mathematical physics and other areas of application (35Q99)

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On the nonlinear analog of the WKB method and on the method of averaged Lagrangian. II ⋮ Space-time ray method for waves of small deformation in a nonlinear elastic medium

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