young’s inequality, hölder’s inequality, Hölder inequality, Young inequality, Inequalities involving derivatives and differential and integral operators, Differentiation (real functions of one variable): general theory, generalized derivatives, mean value theorems, katugampola partial derivatives, QA1-939, opial’s inequality, Inequalities for sums, series and integrals, Katugampola partial derivatives, Wirtinger inequality, wirtinger’s inequality, Mathematics, Opial inequality