zbMath0558.70024MaRDI QIDQ802331
A. M. Elnaggar
Publication date: 1985 Published in: Indian Journal of Pure \& Applied Mathematics (Search for Journal in Brave)
zbMATH Keywords
indicatrixquasi-linear differential equationsindex methodsuper-harmonic synchronizations
Mathematics Subject Classification ID
Forced motions for nonlinear problems in mechanics (70K40)
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