European Journal of Molecular & Clinical Medicine

Abstract

In this paper, we have extended the concept of contraction by introducing D-
Contraction dened on a family of = of bounded function . Also, a new notion of
xed function has been extended G-metric space. Some xed theorems with illustrate
examples have also been given to verify the eectiveness of our result. In 2019, Vishal
et. al [3] presented some xed function theorems using the notion of xed function
and D-Contraction in complete metric space. Following this concept, a sequence is
constructed in G-metric space with three dierent dose function which converges to
a xed function. An application based on the best approximation of treatment plan
for tumor patients by splitting DDC matrix into three components with three dose
functions.