Abstract
The
purpose of this paper is to introduce the nonexpansive multivalued mapping in CAT(0) spaces. The convexity and closednes of a fixed
point set of such mapping and demiclosed principle for such mapping are also
studied. By viscosity approximation methods, We provethat the proposed implicit
iteration net and sequence both converges strongly to a common fixed point of
nonexpansive multi-valued mappings which is also a unique solution of the
variational inequality. The results presented in the paper improve and extend
various results in the current literature.