...上下解方法 [gap=592]Keywords】: Ordinary differential equations in Banach spaces;topological degree;upper-lower solution method ...
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...程 上下解方法 非紧性测度 锥. [gap=376]Keywords】: Banach space, Integrodifferential equation, Lower-upper solution, Kuratowskii measure of noncompactness, cone.
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... secular term 长期项 up-lower solutions method 上下解方法 degenerative matrix 退化阵 ...
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把上下解方法应用到相应有限差分系统上，得到两个迭代序列。
Using the method of upper lower solutions we construct two monotone sequences for the finite difference equations.
使用的主要方法有锥上的不动点理论、拓扑度理论和上下解方法等。
Some efficient tools such as topological degree theory, fixed point theory and lower and upper method have been applied.
方法 应用单调迭代技术结合上下解方法讨论最大解与最小解的存在性。
Methods The method of upper and lower solutions and the monotone iterative technique were used to establish our results.
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