Fixed point theorems under weakly contractive conditions via auxiliary functions in ordered G-metric spaces

We present some fixed point results for a single mapping and a pair of compatible mappings via auxiliary functions which satisfy a generalized weakly contractive condition in partially ordered complete G-metric spaces. Some examples are furnished to illustrate the useability of our main results. At the end, an application is presented to the study of existence and uniqueness of solutions for a boundary value problem for certain second order ODE and the respective integral equation.

Keywords:

G-metric space , Weakly contraction condition , Altering distance function , Compatible mappings , Coincidence point