General-type proximal point algorithm for solving inclusion and fixed point problems with composite operators

Author

Gaston Berger University, Saint Louis, Senegal

Abstract

The main purpose of this paper is to introduce a new general-type proximal point
algorithm for finding a common element of the set of solutions of monotone inclusion
problem, the set of minimizers of a convex function, and the set of solutions of fixed
point problem with composite operators: the composition of quasi-nonexpansive and
firmly nonexpansive mappings in real Hilbert spaces. We prove that the sequence xn
which is generated by the proposed iterative algorithm converges strongly to a
common element of the three sets above without commuting assumption on the
mappings. Finally, applications of our theorems to find a common solution of some
nonlinear problems, namely, composite minimization problems, convex optimization
problems, and fixed point problems, are given to validate our new findings.

Keywords