Certain subclasses of bi-close-to-convex functions associated with quasi-subordination (Q2632535)
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| Language | Label | Description | Also known as |
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| English | Certain subclasses of bi-close-to-convex functions associated with quasi-subordination |
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Certain subclasses of bi-close-to-convex functions associated with quasi-subordination (English)
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14 May 2019
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Summary: In the present investigation, we introduce certain new subclasses of the class of biunivalent functions in the open unit disc \(U = \{z : |z| < 1\}\) defined by quasi-subordination. We obtained estimates on the initial coefficients \(|a_2|\) and \(|a_3|\) for the functions in these subclasses. The results present in this paper would generalize and improve those in related works of several earlier authors.
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