English

The first common fixed point theorem for commutative set-valued mappings

Functional Analysis 2018-01-08 v2 Classical Analysis and ODEs

Abstract

We establish the first common fixed point theorem for commutative set-valued mappings. This may help to generalize common fixed point theorems in single-valued setting to those in set-valued. We also prove the existence of a fixed point in a continuously expanding set under a none convex upper semicontinuous set-valued mapping; as a result we answer positivly to a question of Lau and Yao.

Keywords

Cite

@article{arxiv.1707.06098,
  title  = {The first common fixed point theorem for commutative set-valued mappings},
  author = {Issa Mohamadi},
  journal= {arXiv preprint arXiv:1707.06098},
  year   = {2018}
}

Comments

Some new results were added

R2 v1 2026-06-22T20:51:43.635Z