Coefficients assessment for certain subclasses of bi-univalent functions related with quasi-subordination | Zendy

Sibel Yalçın | Zendy; Waggas Galib Atshan | Zendy; Haneen Zaghir Hassan | Zendy

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Coefficients assessment for certain subclasses of bi-univalent functions related with quasi-subordination

Author(s) -

Sibel Yalçın,

Waggas Galib Atshan,

Haneen Zaghir Hassan

Publication year - 2020

Publication title -

publications de l institut mathematique

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.246

H-Index - 17

eISSN - 1820-7405

pISSN - 0350-1302

DOI - 10.2298/pim2022155y

Subject(s) - subordination (linguistics) , mathematics , class (philosophy) , pure mathematics , univalent function , function (biology) , unit disk , unit (ring theory) , analytic function , computer science , mathematics education , philosophy , linguistics , artificial intelligence , evolutionary biology , biology

We investigate specific new subclasses of the function class ? of bi-univalent function defined in the open unit disc, which is connected with quasi-subordination. We find estimates on the Taylor-Maclaurin coefficients |a2| and |a3| for functions in these subclasses. Already pointed out are some documented and new implications of those findings.

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