In this paper, we are concerned with the existence of periodic solutions of second-order non-autonomous systems. By applying the Schauder＇s fixed point theorem and Miranda＇s theorem, a new existence result of period...In this paper, we are concerned with the existence of periodic solutions of second-order non-autonomous systems. By applying the Schauder＇s fixed point theorem and Miranda＇s theorem, a new existence result of periodic solutions is established.展开更多
基金Supported by the Fundamental Research Funds for the Gansu Universities(2015A-150)the PhD scientific research start-up capital funded projects of Longdong University(XYBY05)
文摘In this paper, we are concerned with the existence of periodic solutions of second-order non-autonomous systems. By applying the Schauder＇s fixed point theorem and Miranda＇s theorem, a new existence result of periodic solutions is established.
