Iterative Methods for Fixed Point Problems in Hilbert Spaces

Iterative methods for finding fixed points of non-expansive operators in Hilbert spaces have been described in many publications. In this monograph we try to present the methods in a consolidated way. We introduce several classes of operators, examine their properties, define iterative methods generated by operators from these classes and present general convergence theorems. On this basis we discuss the conditions under which particular methods converge. A large part of the results presented in this monograph can be found in various forms in the literature (although several results presented here are new). We have tried, however, to show that the convergence of a large class of iteration methods follows from general properties of some classes of operators and from some general convergence theorems.

The projection methods for fixed point problems are presented in a consolidated way Over 60 figures help to understand the properties of important classes of algorithmic operators The convergence properties of projection methods follow from a few general convergence theorems presented in the monograph Includes supplementary material: sn.pub/extras

Inhalt
1 Introduction.- 2 Algorithmic Operators.- 3 Convergence of Iterative Methods.- 4 Algorithmic Projection Operators.- 5 Projection methods.