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EXISTENCE OF PERIODIC SOLUTIONS IN NONLINEAR ASYMMETRIC OSCILLATIONS

Published online by Cambridge University Press:  02 August 2005

XIAOJING YANG
Affiliation:
Department of Mathematics, Tsinghua University, Beijing 100084, Chinayangxj@mail.tsinghua.edu.cn
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Abstract

The existence of periodic solutions for the nonlinear asymmetric oscillator $ x''{+}\alpha x^+{-}\beta x^- {=} h(t),\qquad (' = d/dt) $ is discussed, where $\alpha, \beta$ are positive constants satisfying $ {1}/{\sqrt{\alpha}} + {1}/{\sqrt{\beta}} = {2}/{n} $ for some positive integer $n\in {\bf \mathbb{N}}$ and $h(t)\in L^\infty(0,2\pi)$ is $2\pi$-periodic with $x^{\pm}=\max\{\pm x, 0\}$.

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Papers
Copyright
© The London Mathematical Society 2005

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