FEKETE-SZEGÖ PROBLEM FOR CONCAVE UNIVALENT FUNCTIONS DEFINED BY SĂLĂGEAN OPERATOR

Authors

  • Alawiah Ibrahim Victoria University - School of Engineering and Science
  • Maslina Darus University Kebangsaan Malaysia - School of Mathematical Sciences
  • Sever S. Dragomir Victoria University - School of Engineering Sciences

Keywords:

Concave, Univalent function, S˘al˘agean differential operator

Abstract

Let C0(α) denote the class of concave univalent functions defined in the open unit disk U.  In this paper, we investigate the sharp upper bounds of Fekete-Szeg¨o functional with real and complex parameter λ for the class of concave univalent functions defined by S˘al˘agean differential operator.

Cover of n°32 Italian Journal of Pure and Applied Mathematics

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Published

2014-08-22

How to Cite

Ibrahim, A., Darus, M., & Dragomir, S. S. (2014). FEKETE-SZEGÖ PROBLEM FOR CONCAVE UNIVALENT FUNCTIONS DEFINED BY SĂLĂGEAN OPERATOR. Italian Journal of Pure and Applied Mathematics, 32, 73–86. Retrieved from https://journals.uniurb.it/index.php/ijpam/article/view/6234

Issue

N°32 - August 2014

Section

Articoli - Forum Editrice

License

Copyright (c) 2014 Alawiah Ibrahim, Maslina Darus, Sever S. Dragomir

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

L'opera è pubblicata sotto  Licenza Creative Commons Attribuzione 4.0 Internazionale (CC-BY)

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