【摘要】 本文讨论带有偏差变量的微分方程的振动性,对于形如x＇(t)+p(t)x(t-τ)+q(t)x([t-k])=0和X＇(t)+sum from i=1 to m pi(t)x(t-τ_i)+sum from i=1 to m qj(t)x([t-k_j])=0的微分方程,得出了几个振动性的判别准则。其中[·]是最大取整函数。更多还原

【Abstract】 In this paper, we study the oscillation behavior of differcntial equations with plcccwisc argumcn■ and obtain some results on equations and更多还原