Let be the sequence of partial sums of the analytic function . In this paper, we determine sharp lower bounds for , and . The usefulness of the main result not only provides the unification of the results discussed in the literature but also generates certain new results.
G. Murugusundaramoorthy. K. Uma. M. Darus. "Partial Sums of Generalized Class of Analytic Functions Involving Hurwitz-Lerch Zeta Function." Abstr. Appl. Anal. 2011 1 - 9, 2011. https://doi.org/10.1155/2011/849250