... Mathematical Analysis and Applications, vol. 189, no. 1, pp. 128–144,1995.[4] O. Lipovan, “A retarded integral inequality and its applications, ” Journal of Mathematical Anal-ysis and Applications, ... variables and their applications, ” Journal of Inequalities and Applications, vol. 2005, no. 4,pp. 347–361, 2005.Kelong Zheng: College of Science, Southwest University of Science and Technology,Mianyang, ... of b1,in and the continuity of Wi and W−1iunder the notation W1(0) := 0. Theorem 2.4. In addition to the assumpt ions (C1), (C2), and (C3), suppos e that a(x, y) and di(x,...