Abstract
In this paper, we study the existence of stable and unstable periodic solutions of the forced pendulum of variable length. The proof is based on a stability criterion which was obtained in [11] by using the third order approximation method and a generalized version of the Poincaré-Birkhoff fixed point theorem.
Citation
Zaitao Liang. Zhongcheng Zhou. "Stable and Unstable Periodic Solutions of the Forced Pendulum of Variable Length." Taiwanese J. Math. 21 (4) 791 - 806, 2017. https://doi.org/10.11650/tjm/7829
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