A common fixed point theorem for multi-valued mappings in ultrametric spaces

Alireza Kamel Mirmostafaei, Zahra Alinejad

Abstract


We will introduce a new class of implicit functions to prove a common fixed point theorem for multi-valued mappings in ultrametric spaces. Our result enable us to give a genuine generalization of  some known fixed point theorems, provided that the underling space is ultrametric.

Keywords


Fixed point, multi-valued mappings, ultrametric space

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