Cofficient estimates for a general Subclass of bi-univalent functions | Zendy

Khosrow Hosseinzadeh | Zendy

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Cofficient estimates for a general Subclass of bi-univalent functions

Author(s) -

Khosrow Hosseinzadeh

Publication year - 2022

Publication title -

boletim da sociedade paranaense de matemática

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.347

H-Index - 15

eISSN - 2175-1188

pISSN - 0037-8712

DOI - 10.5269/bspm.51659

Subject(s) - subclass , lambda , unit disk , mathematics , combinatorics , univalent function , unit (ring theory) , sigma , class (philosophy) , discrete mathematics , pure mathematics , computer science , analytic function , physics , artificial intelligence , mathematics education , quantum mechanics , antibody , optics , immunology , biology

In this paper, we introduce and investigate an interesting subclass ${\cal{S}}^{h,p}_{\Sigma}(A,B,C,\lambda)$ of bi-univalent functions in the open unit disk $\mathbb{U}$. Furthermore, we find estimates on the $|a_2|$ and $|a_3|$ coefficients for functions in this subclass. The coefficient bounds presented here generalize some recent works of several earlier authors.

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