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Upper bounds for Fekete–Szegö functional

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Abstract

In this present investigation, with the help of the Sălăgean differential operator and the Hadamard product, we define new subclasses of analytic functions. We investigate sharp upper bounds for these subclasses. The results presented in this paper have been shown to generalize and improve some recent work of Frasin and Darus (Internat J Math Math Sci 24(9): 577–581, 2000).

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Acknowledgements

The authors would like to thank the referees for useful suggestions that essentially improved the manuscript.

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  1. Department of Mathematics, Faculty of Science, Ataturk University, 25240, Erzurum, Turkey

    Fatma Sağsöz, Hava Arikan & Halit Orhan

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  1. Fatma Sağsöz
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  2. Hava Arikan
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  3. Halit Orhan
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Correspondence to Fatma Sağsöz.

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Sağsöz, F., Arikan, H. & Orhan, H. Upper bounds for Fekete–Szegö functional. Bol. Soc. Mat. Mex. 29, 80 (2023). https://doi.org/10.1007/s40590-023-00552-w

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