Iranian Mathematical Society (IMS) Bulletin of the Iranian Mathematical Society 1017-060X 36 No. 2 2011 01 03 Some Properties of Certain Subclasses of Close-to-Convex and Quasi-convex Functions with Respect to 2k-Symmetric Conjugate Points217 238 en Z.-G. Wang Hengyang Normal University Y.-P. Jiang Hunan University 2011 01 03 Analytic functions starlike functions convex functions close-to-convex functions quasi-convex functions subordination between analytic functions Hadamard product (or convolution) 2k-symmetric conjugate points