the fixed-point theorem in cones 锥上不动点定理
the cone's fixed point theorem 锥不动点定理
The Lefschetz fixed point theorem 莱夫谢茨不动点定理
The existence of multiple positive solutions for some fourth-order two-point boundary value problems are obtained by using the fixed point theorem in cone. The obtained results improve and extend the existing results partially.
本文应用锥上的不动点定理,研究了该类四阶常微分方程两点边值问题多个正解的存在性,给出了该类问题多个正解存在的充分条件,本文结果推广和改进了一些已知结果。
参考来源 - 一类四阶两点边值问题多个正解的存在性In the last paper of this thesis, by using the fixed point theorem, we study the existence of final positive solution of a high-order nonlinear neutral delay difference equation.
在论文的最后一章,运用不动点原理研究了一类高阶非线性差分方程最终正解的存在性问题。
参考来源 - 关于几类中立型差分方程振动性和正解存在性的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The techniques used here are based on the unique continuation of linear parabolic systems arid the fixed point theorem.
所用的技巧主要是建立在线性抛物系统的唯一连续性和不动点方法的基础上。
By using the fixed point theorem, we prove some new existence theorems of the solution for this class of nonlinear projection equations in Hilbert Spaces.
利用不动点定理，我们得到了关于这类非线性投影方程解的一些新的存在性定理。
By using the fixed point theorem on cone, this paper studies the existence of positive solutions for first order periodic boundary value problem with impulses.
利用锥上的不动点定理讨论了一阶脉冲微分方程周期边值问题的正解的存在性。
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