【摘要】 为研究脉冲微分方程边值问题解的存在性,通过上下解技术,得到关于变系数脉冲微分方程边值问题解的存在性结论,即设脉冲方程极限解x*和x*,若存在序列xn和yn满足x0≤…≤xk≤…≤yn≤…≤y0,同时函数f和脉冲条件满足有界性,则这两个序列满足lni→m∞xn<x*,lim/n→∞yn=x*,并推广已有的研究结果。更多还原

【Abstract】 We considered the existence of solutions of nonlinear boundary value problems for first order impulsive differential equations with variable coefficients.By the method of lower and upper solutions coupled with monotone iterative technique,new and extend previous results were obtained.更多还原