Several theorems on fixed point index of random operator 关于随机算子不动点指数的几个定理
In this paper , by using the fixed point index method , the authors discussed the periodic boundary value problem of first order differential systems 摘要利用锥上的不动点指数研究了一阶非线性常微分方程组的周期边值问题。
This paper discusses the existence of multiple positive solutions of a class of nonlinear singular boundary value problems by means of the fixed point index theorem on cones 摘要利用锥映射的不动点指数定理,研究了一类非线性奇异边值问题多个正解的存在性问题。
The existence of multi - positive solutions are presented to a singular nonlinear second periodic order boundary value problem . and the proof uses the fixed point index in the cone theory 摘要利用格林函数的正性和锥不动点指数,分析了一类奇异非线性二阶周期边值问题的多个正解的存在性。
By using the fixed point index theorem , the existence of positive solutions for nonlinear m - point boundary value problem is established under some weaker conditions , and previous results are improved and generalized 摘要本文在较弱的条件下,利用不动点指数定理研究了一类算子多点边值问题正解的存在性,推广并改进了原有的结果。