... Owa, “New applications of classes of analytic functions involving the S˘al˘ageanoperator,” in Proceedings of the International Symposium on Complex Function Theory and Applications, pp.21–34, ... Littlewood, On inequalities in the theory of functions,” Proceedings of the London MathematicalSociety, vol. 23, no. 1, pp. 481–519, 1925.Hindawi Publishing CorporationJournal of Inequalities and Applications Volume ... 4.3Further, we need the concept of subordination between analytic functions 6 and a subordi-nation theorem of Littlewood in our investigation.Definition 4.3. For two functions f and g, analytic...