scientific article; zbMATH DE number 3895438

zbMath0562.34027MaRDI QIDQ5187563

Hassan M. El-Owaidy, A. A. S. Zagrout

Publication date: 1981

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

third order ordinary differential equationPoincaré-Lindstedtformal perturbation analysesformal perturbation expansion, averagingKrylov- Bogolyubov

Mathematics Subject Classification ID

Periodic solutions to ordinary differential equations (34C25) Nonlinear oscillations and coupled oscillators for ordinary differential equations (34C15) Averaging method for ordinary differential equations (34C29) Perturbations, asymptotics of solutions to ordinary differential equations (34E10)

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