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Fixed point index for discontinuous operators and fixed point theorems in cones with applications
Journal of Fixed Point Theory and Applications ( IF 1.4 ) Pub Date : 2020-10-01 , DOI: 10.1007/s11784-020-00827-z
Rubén Figueroa , Rodrigo López Pouso , Jorge Rodríguez–López

We obtain a new fixed point index theory for a class of not necessarily continuous operators in cones. We employ this tool to prove a discontinuous version of Leggett–Williams’ fixed point theorem. Finally, we establish new existence and multiplicity criteria for a second-order three point BVP with discontinuous nonlinearities.



中文翻译:

不连续算子的不动点索引和锥中的不动点定理及其应用

我们为锥中的一类不一定连续的算子获得了新的不动点索引理论。我们使用该工具来证明Leggett–Williams不动点定理的不连续形式。最后,我们为具有不连续非线性的二阶三点BVP建立了新的存在性和多重性准则。

更新日期:2020-10-02
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