Semnan University International Journal of Nonlinear Analysis and Applications 2008-6822 8 1 2017 07 01 Some extensions of Darbo's theorem and solutions of integral equations of Hammerstein type 337 351 2516 10.22075/ijnaa.2017.1355.1334 EN Reza Allahyari Department of Mathematics, Mashhad Branch, Islamic Azad University,mashhad, Iran Asadollah Aghajani School of Mathematics, Iran University of Science and Technology, Narmark, Tehran 16846 13114, Iran Journal Article 2016 04 25 In this brief note,  using the technique of measures of noncompactness, we give some extensions of Darbo fixed point theorem. Also we prove  an existence result for a quadratic  integral equation of Hammerstein type on an unbounded interval in two variables  which includes several classes of nonlinear integral equations of Hammerstein type. Furthermore, an example is presented to show the efficiency of our result. Measure of noncompactness Quadratic integral equation Darbo fixed point theorem https://ijnaa.semnan.ac.ir/article_2516_53794ed15760aa0136631bfa489ca584.pdf