On coefficient inequalities of certain subclasses of bi-univalent functions involving the Sălăgean operator
| Autor: | H Uday Naik, B Amol Patil |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Filomat. 35:1305-1313 |
| ISSN: | 2406-0933 0354-5180 |
| DOI: | 10.2298/fil2104305p |
| Popis: | In the present investigation, with motivation from the pioneering work of Srivastava et al. [28], which in recent years actually revived the study of analytic and bi-univalent functions, we introduce the subclasses T*?(n,?) and T?(n,?) of analytic and bi-univalent function class ? defined in the open unit disk U = {z ? C : |z| < 1g and involving the S?l?gean derivative operator Dn. Moreover, we derive estimates on the initial coefficients |a2| and |a3| for functions in these subclasses and pointed out connections with some earlier known results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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