利用一些比较结果,讨论了Banach空间中二阶周期边值问题解的存在性,获得了若干解的存在性与唯一性结果.......

In this paper, using Sadovskii’s fixed point theorem and properties of the measure of noncompactness, we obtain asympto......

讨论了方程 X(t)=f(t)+λintegral from n=D K(t,S)g(s,x(s))ds x∈D解的存在性,借助于对非紧性测度有关不等式的推广,解决了[1]中......