We present some new oscillation criteria for second order neutral delay differential equations with distributed deviating argument using the Riccati technique and some inequalities. The results obtained improve and extend some known results.
Siyu Zhang,Fanwei Meng(Dept. of Math.,Qufu Normal University,Qufu 273165,Shandong)
考虑二阶中立型时滞微分方程[a(t)(x(t)±sum [r_i(t)x(α_i(t)))']'from i∈L+sum pi(t)x(βi(t)) from i∈M-sum qi(t)x(γi(t)) from i∈N=f(t)-,t≥t0的振动情况,得到了此类方程解振动的充分条件.该文的结果推广了ManojloviéJ[2006]中的主要结果.
