Δ-CONVERGENCE THEOREMS FOR INVERSE-STRONGLY MONOTONE MAPPINGS IN CAT(0) SPACES.

In this paper, we first define and study inverse-strongly monotone mappings in general metric spaces. Then, we prove the existence theorem of solutions for variational inequalities involving such mappings. Finally, we introduce an iterative process for finding a common element of the set of fixed points of a nonexpansive mapping and the set of solutions of a variational inequality problem for inverse-strongly monotone mappings in CAT(0) metric spaces. [ABSTRACT FROM AUTHOR]