研究了一类含有连续分布时滞的二阶非线性中立型微分方程的振动性.利用推广的Riccati变换和算子法,得到了该方程一切解均为振动的若干新的振动准则.推广和改进了已有文献中的主要结果,给出了一个例子说明结果的优越性.
In this paper, a class of second-order nonlinear neutral differential equations with continuous distributed deiay are studied. By using the generalized Riccati transformation and the operator technique, it establishes several new oscillation criteria for all solutions of the equations, which generalize and improve some results. An example is given to illustrate the superiority of our main results.