This paper considers oscillatory and asymptotic behaviour of following n order neutral functional differential equation:dn/dtn[x（t）-cx（t-τ）]+（-1）n-1 integral from n=-τ* to 0 x（t+θ）dη（θ）=0, （1）nwhere τ0, τ*0, 1c0, η（θ） is nondecreasing function with bounded variation on[-τ*, 0].In this paper the author obtains some results for any integer n and c∈[0, 1). When c=0 or n=1, these results coincide with the results in G. Ladas’s paper [4] and the author’s papers [1, 2].
展开▼
