摘要
在不假定f满足非紧性测度及上下解存在的情形下,运用单调迭代方法,讨论了无穷区间上一阶脉冲微分方程初值问题解的存在性与正解的存在唯一性,对脉冲函数没有加任何单调性结果,改进了已有的结果.
Neither using noncompactness measure condition,nor assuming the existence of upper and lower sohitions,the author discusses the existence and uniqueness of positive solutions on infinite, interval by way of monotone method for first-order impulsive equations. In this process, the author improves the results without assumption of monotonieity on impulsive functions.
出处
《甘肃科学学报》
2011年第1期1-5,共5页
Journal of Gansu Sciences
关键词
BANACH空间
初值问题
单调迭代
正解
Banach spaces
initial value problems
monotone iterative
positive solution