scientific article
zbMath0747.34021MaRDI QIDQ4001137
Publication date: 26 September 1992
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
asymptotic approximationsubharmonic oscillationBogolyubov-Mitropol'skij4-resonanceasymptotical studynon-linear parametrical oscillator
Periodic solutions to ordinary differential equations (34C25) Theoretical approximation of solutions to ordinary differential equations (34A45) Bifurcation theory for ordinary differential equations (34C23) Nonlinear oscillations and coupled oscillators for ordinary differential equations (34C15) Almost and pseudo-almost periodic solutions to ordinary differential equations (34C27) Asymptotic expansions of solutions to ordinary differential equations (34E05)
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