Resonance problem for a class of Duffing's equations

zbMath0593.34042MaRDI QIDQ1076212

Wei-Yue Ding, Ding Tongren

Publication date: 1985

Published in: Chinese Annals of Mathematics. Series B (Search for Journal in Brave)

zbMATH Keywords

second order differential equationPoincaré-Birkhoff fixed point theoremDuffing's equationharmonic solutions

Mathematics Subject Classification ID

Periodic solutions to ordinary differential equations (34C25)

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