Measure of noncompactness and JS-Presic fixed point theorems and its applications to a system of integral equations

In this paper, we gain a new extension of well-known Darbo?s fixed point theorem in Banach space. Our results provide several expressions which all are generalizations theorem. As applications, obtain some Presic type extensions Darbo help us the studying existence solution for system functional integral equations BC(R+). Finally, provided an example to demonstrate efficacy our results.