Subclasses of Analytic Functions with Negative Coefficients Involving q-Derivative Operator
Let A denote the class of functions f which are analytic in the open unit disk U. The subclass of A consisting of univalent functions is denoted by M. In this paper, we also consider a subclass of M which is denoted by V, consisting of functions with negative coefficients. In addition, this paper al...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
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Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya
2022
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| Online Access: | https://eprints.ums.edu.my/id/eprint/34339/1/Abstract.pdf https://eprints.ums.edu.my/id/eprint/34339/2/Full%20text.pdf https://eprints.ums.edu.my/id/eprint/34339/ https://sciencetechindonesia.com/index.php/jsti/article/view/495/253 https://doi.org/10.26554/sti.2022.7.3.327-332 |
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| Institution: | Universiti Malaysia Sabah |
| Language: | English English |
| Summary: | Let A denote the class of functions f which are analytic in the open unit disk U. The subclass of A consisting of univalent functions is denoted by M. In this paper, we also consider a subclass of M which is denoted by V, consisting of functions with negative coefficients. In addition, this paper also studies the q-derivative operator. By combining the ideas, this paper introduced three subclasses of A with negative coefficients involving q-derivative. Furthermore, the coefficient estimates, growth results and extreme points were obtained for all of these classes. |
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