Coefficient Bounds for Certain Subclasses of q-Starlike Functions

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 14 Oct 2019 English Publisher:MDPI AGJournal:Mathematics, volume 7, page 969 (eissn: 2227-7390,

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Authors: Lin-Lin Fan; Zhi-Gang Wang; Shahid Khan; Saqib Hussain; Muhammad Naeem; Tahir Mahmood;

doi: 10.3390/math7100969

Coefficient Bounds for Certain Subclasses of q-Starlike Functions

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Abstract

By making use of q-calculus, we define and investigate several new subclasses of bi-univalent mappings related to the q-Noor integral operator. The coefficient bounds | u 2 | , | u 3 | and the Fekete–Szegő problem u 3 − μ u 2 2 for mappings belonging to these classes are derived.

Related Organizations

International Islamic University
Pakistan
COMSATS University Islamabad
Pakistan
Hunan First Normal University
China (People's Republic of)
Riphah International University
Pakistan

Keywords

q-noor integral oprator, analytic functions, q-Noor integral oprator, q-starlike functions, QA1-939, q-derivative operator, bi-univalent functions, Mathematics

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