研究一类具分布时滞和阻尼项的偶阶半线性中立型微分方程解的振动性质,利用广义Riccati变换和积分平均技巧得到方程一切解均为振动......

By employing the inequality of [8]and a positive continuous function g(t), t ∈(t_0, +∞), oscillation criteria for the ......