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Estimates for the Coefficients of Subclasses Defined by the Bell Distribution of Bi-Univalent Functions Subordinate to Gegenbauer Polynomials

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In the real world there are many applications that find the Bell distribution to be a useful and relevant model. One of these is the normal distribution. In this paper,… Click to show full abstract

In the real world there are many applications that find the Bell distribution to be a useful and relevant model. One of these is the normal distribution. In this paper, we develop a new subclass of analytic bi-univalent functions by making use of the Bell distribution as a building block. These functions involve the Gegenbauer polynomials, and we use them to establish our new subclass. In this study, we solve the Fekete–Szegö functional problem and analyse various different estimates of the Maclaurin coefficients D2 and D3 for functions that belong to the built class.

Keywords: univalent functions; gegenbauer polynomials; estimates coefficients; distribution; bell distribution

Journal Title: Mathematics
Year Published: 2023

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