【摘要】 研究了一类具偏差变元的Liénard型方程x″(t)+f(x(t))x′(t)+g(t,x(t-τ(t)))=p(t).利用重合度理论,获得了该方程存在惟一T-周期解的若干新结论,改进推广了有关文献中的已有结果.更多还原

【Abstract】 In this paper,by using the coincidence degree theory,new results are obtained for the existence and uniqueness of periodic solutions of the following Liénard-type equation with a deviating argument: x″(t)+f(x(t))x′(t)+g(t,x(t-τ(t)))=p(t). Some existing related results in the literature are improved and extended.更多还原