摘要
In this paper,non-zero-homotopic periodic orbits of a class of cylinder systems arestudied,and some sufficient conditions for the existence and uniqueness of such periodicorbits are obtained. The results obtained generalize or correct some results of [3,4].
In this paper,non-zero-homotopic periodic orbits of a class of cylinder systems arestudied,and some sufficient conditions for the existence and uniqueness of such periodicorbits are obtained. The results obtained generalize or correct some results of [3,4].