On initial coefficient inequalities for certain new subclasses of bi-univalent functions
| Autor: | Amol B. Patil, Uday H. Naik |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Class (set theory)
Pure mathematics 021103 operations research Bi-univalent function lcsh:Mathematics 010102 general mathematics 0211 other engineering and technologies Univalent function Coefficient estimate 02 engineering and technology lcsh:QA1-939 01 natural sciences Unit disk Combinatorics Analytic function 0101 mathematics Mathematics |
| Zdroj: | Journal of the Egyptian Mathematical Society, Vol 25, Iss 3, Pp 291-293 (2017) |
| Popis: | In the present paper, we introduce two interesting subclasses of the class of bi-univalent functions defined on the open unit disk U and obtain improved estimates on the initial coefficients |a2|, |a3| and |a4| for the functions in these subclasses. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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