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arXiv 2306.02431math.CV
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与 Gregory 系数相关的星形函数的精确系数界

Sharp coefficients bounds for Starlike functions associated with Gregory coefficients

Sercan Kazımoğlu, Erhan Deniz, Hari Mohan Srivastava

AI总结:

本文定义与 Gregory 系数生成函数相关的星形函数类 $\mathcal{S}_{G}^{*}$,并借助正实部函数的系数泛函界,证明其前六个系数及相应 Hankel 行列式的精确界。

摘要:

本文引入了解析函数类 $\mathcal{S}_{G}^{*}$,该函数类与星形函数以及 Gregory 系数的生成函数相关。通过利用具有正实部的函数族的某些系数泛函的界,我们得到了函数类 $\mathcal{S}_{G}^{*}$ 中前六个系数的若干精确系数界,以及相应 Hankel 行列式的进一步精确界。

英文摘要:

In this paper we introduced the class $\mathcal{S}_{G}^{\ast }$ of analytic functions which is related with starlike functions and generating function of Gregory coefficients. By using bounds on some coefficient functionals for the family of functions with positive real part, we obtain for functions in the class $\mathcal{S}_{G}^{\ast }$ several sharp coefficient bounds on the first six coeffcients and also further sharp bounds on the corresponding Hankel determinants.

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