Sufficient and Necessary Conditions for Generalized Distribution Series on Comprehensive Subclass of Analytic Functions
In this paper, we demonstrate a relationship between a generalized distribution
series and a comprehensive subclass of analytic functions. The primary aim of this study is
to determine a necessary and sufficient condition for the generalized distribution series
E?? (?, z) to belong to the inclusive subclass ??(Q3,Q2,Q1,Q0). Necessary and sufficient
conditions are also given for the generalized distribution series E?? (?, z)? and the integral
operator J?
? (z) to be in the inclusive subclass ??(Q3,Q2,Q1, 0). Further, we provide a
number of corollaries, which improve the existing ones that are available in some recent
studies. The results presented here not only improve the earlier studies, but also give rise
to a number of new results for particular choices of Q3,Q2,Q1 and Q0.