Browsing by Author "Mustafa, Nizami"

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    Coefficient bounds for a certain subclass of analytic and bi-univalent functions
    (Ankara Üniversitesi Fen Fakültesi, 2019-08-01) Mustafa, Nizami; Nezir, Veysel; Other; Other
    In this paper, we introduce and investigate a new subclass of the a-nalytic and bi-univalent functions in the open unit disk in the complex plane. For the functions belonging to this class, we obtain estimates on the first three coefficients in their Taylor-Maclaurin series expansion. Some interesting corollaries and applications of the results obtained here are also discussed.
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    Univalence criteria of the certain integral operators
    (Ankara Üniversitesi Fen Fakültesi, 2021-06-30) Mustafa, Nizami; Korkmaz, Semra; Other; Other
    In this paper, we give some sufficient conditions for the univalence of some integral operators. For this, we use the Becker's and generalized version of the well known Ahlfor's and Becker's univalence criteria.