Subclasses of $p$-valent starlike and convex functions
in the unit disk in the complex plane are investigated. Every
$p$-valent convex function in a subclass is shown to belong to its
corresponding subclass of starlike functions. A necessary and
sufficient condition for functions to belong to these classes is
obtained. Subordination properties, and sharp distortion, growth,
covering and rotation estimates are obtained for these classes.
Convolution results with prestarlike functions are also derived.
@article{1251832366,
author = {Ali, Rosihan M. and Ravichandran, V. and Lee, See Keong},
title = {Subclasses of Multivalent Starlike and Convex Functions},
journal = {Bull. Belg. Math. Soc. Simon Stevin},
volume = {16},
number = {1},
year = {2009},
pages = { 385-394},
language = {en},
url = {http://dml.mathdoc.fr/item/1251832366}
}
Ali, Rosihan M.; Ravichandran, V.; Lee, See Keong. Subclasses of Multivalent Starlike and Convex Functions. Bull. Belg. Math. Soc. Simon Stevin, Tome 16 (2009) no. 1, pp. 385-394. http://gdmltest.u-ga.fr/item/1251832366/