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Paper Title:
Properties of Certain Multivalent Functions Involving Ruscheweyh Derivatives
Author(s):
N-Eng Xu and Ding-Gong Yang
Department of Mathematics,
Changshu Institute of Technology,
Changshu, Jiangsu 215500,
China
Abstract:
Let Ap(p∈ N) be the class of functions
which are analytic
in the unit disk. By virtue of the Ruscheweyh derivatives we introduce the new
subclasses Cp(n,α,β,λ,μ) of Ap. Subordination relations, inclusion relations,
convolution properties and a sharp coefficient estimate are
obtained. We also give a sufficient condition for a function to be
in Cp(n,α,β,λ,μ)
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