Common fixed points of (ψ,ϕ)(ψ,ϕ)-type contractive maps

One interesting technique for obtaining fixed point results is the technique of contractive conditions of integral type. (ψ,ϕ)(ψ,ϕ)-type contractive maps are introduced in order to generalize this technique. Some common fixed point results for (ψ,ϕ)(ψ,ϕ)-type contractive maps on metric spaces are proved. Finally, a result is also obtained concerning the discontinuity of (ψ,ϕ)(ψ,ϕ)-type contractive maps at their unique common fixed point.