... CorporationJournal of Inequalities and ApplicationsVolume 2007, Article ID 38347, 15 pagesdoi:10.1155/2007/38347 Research Article On Opial-Type Integral InequalitiesWing-Sum Cheung and Chang-Jian ZhaoReceived ... Journal of Inequalities and ApplicationsLet ui(s,t), hi(s,t), and pi(s,t)changeto fi(t), hi(t), and pi(t), respectively, where i =1, ,n,then(2.25) reduces to the following inequality:bani=1DiFf1(t), ... pi(s,t), and qi(s,t)reducetoui(t), vi(t), hi(t),wi(t), pi(t), and qi(t), respectively, and with suitable modifications (where i = 1, , n),W S. Cheung and C J. Zhao 13From (2.40) and...