Some Fixed Point and Common Fixed Point Theorems for Rational Inequality in Hilbert Space

摘要

There are several theorems are prove in Hilbert space, using various type of mappings . In this paper, we prove some fixed point theorem and common fixed point . Theorems, in Hilbert space using different, symmetric rational mappings . The object of this paper is to obtain a common unique fixed point th eorem for four continuous mappings defined on a non -empty closed subset of a Hilbert space