International Journal of Mathematics and Mathematical Sciences
Volume 2006 (2006), Issue 10, Pages 38258, 6 p.
doi:10.1155/IJMMS/2006/38258

Neighborhoods of certain classes of analytic functions with negative coefficients

Abstract

By making use of the familiar concept of neighborhoods of analytic functions, the author proves several inclusion relations associated with the (n,δ)-neighborhoods of various subclasses defined by Salagean operator. Special cases of some of these inclusion relations are shown to yield known results.