Volume 32 • Number 3 • 2009   • Convolution and Differential Subordination for Multivalent Functions Shamani Supramaniam, Rosihan M. Ali, See Keong Lee and V. Ravichandran Abstract. The general classes of multivalent starlike, convex, close-to-convex and quasi-convex functions are introduced. These classes provide a unified treatment to various known subclasses. Inclusion and convolution properties are derived using the methods of convex hull and differential subordination. 2000 Mathematics Subject Classification: 30C80, 30C45. Full text: PDF