测度链上具有正负系数的中立型动力方程的有界解

Bounded Solutions for a Class of Neutral Differential Equation with Positive and Negative Coefficients on Measure Chains

考虑测度链上的方程(x(t)-x(t-r))Δ+P(t)x(t-θ)-Q(t)x(t-δ)=0.获得该方程有界正解和有界振动解存在的充分条件.这里r>0,θ>δ≥0为常数,P,Q∈Crd〔T,R+).

This paper is concerned with （x（t）-x（t-r））^△＋P（t）x（t-θ）-Q（t）x（t-δ）=0,and obtained sufficient conditions on the existence of bounded solutions, where r〉0,θ〉δ≥0 is costant,P,Q∈Crd[T,R^＋）.