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JMB Journal of Microbiolog and Biotechnology

OPEN ACCESS eISSN 0454-8124
pISSN 1225-6951
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Original Article

Kyungpook Mathematical Journal 2015; 55(4): 953-967

Published online December 23, 2015

Copyright © Kyungpook Mathematical Journal.

On a Class of Spirallike Functions associated with a Fractional Calculus Operator

Kuppathai Appasamy Selvakumaran1, Geetha Balachandar2,Pugazhenthi Rajaguru3

1,2Department of Mathematics, R. M. K College of Engineering and Technology, Puduvoyal - 601206, Tamil Nadu, India
3Department of Mathematics, Arignar Anna Govt. Arts College, Attur - 636121, Tamil Nadu, India

Abstract

In this article, by making use of a linear multiplier fractional differential operator $D^{delta,m}_{lambda}$, we introduce a new subclass of spiral-like functions. The main object is to provide some subordination results for functions in this class. We also find sufficient conditions for a function to be in the class and derive Fekete-Szego inequalities.

Keywords: Analytic functions, $alpha$-spirallike functions of order $eta$, Fractional differential operator, Fekete-Szego problem, Subordination