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Bulletin of Irkutsk State University. Series Mathematics, 2018 Volume 23, Pages 80–95 (Mi iigum332)

On certain subclasses of analytic functions with varying arguments of coefficients

H. M. Zayeda, M. K. Aoufb, Maslina Darusc

a Menofia University, Egypt
b Mansoura University, Egypt
c Universiti Kebangsaan Malaysia

Abstract: In this paper we introduce and study the class$ \mathcal{VR}_{\delta ,\eta }(n,\lambda ,\alpha ) $of analytic functions with varying arguments of coefficients. We obtain coefficients inequalities, distortion theorems involving fractional calculus, radii of close to convexity, starlikeness and convexity and square root transformation for functions in the class $\mathcal{VR}_{\delta ,\eta }(n,\lambda ,\alpha )$. Finally, integral convolution for functions in this class are considered.

Keywords: analytic functions, Hadamard product, fractional calculus operators, varying arguments of coefficients, square root transformation, integral convolution.

UDC: 518.517

MSC: 30C45

Received: 11.11.2017

Language: English

DOI: 10.26516/1997-7670.2018.23.80



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