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Coefficient Inequalities for a Subclass of Symmetric q ‐Starlike Functions Involving Certain Conic Domains

Author

Listed:
  • Mohammad Faisal Khan
  • Nazar Khan
  • Serkan Araci
  • Shahid Khan
  • Bilal Khan

Abstract

In this paper, we make use of a certain Ruscheweyh‐type q ‐differential operator to introduce and study a new subclass of q ‐starlike symmetric functions, which are associated with conic domains and the well‐known celebrated Janowski functions in D. We then investigate many properties for the newly defined functions class, including for example coefficients inequalities, the Fekete–Szegö Problems, and a sufficient condition. There are also relevant connections between the results provided in this study and those in a number of other published articles on this subject.

Suggested Citation

  • Mohammad Faisal Khan & Nazar Khan & Serkan Araci & Shahid Khan & Bilal Khan, 2022. "Coefficient Inequalities for a Subclass of Symmetric q ‐Starlike Functions Involving Certain Conic Domains," Journal of Mathematics, John Wiley & Sons, vol. 2022(1).
  • Handle: RePEc:wly:jjmath:v:2022:y:2022:i:1:n:9446672
    DOI: 10.1155/2022/9446672
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    References listed on IDEAS

    as
    1. Bilal Khan & Zhi-Guo Liu & Timilehin Gideon Shaba & Serkan Araci & Nazar Khan & Muhammad Ghaffar Khan & Om P. Ahuja, 2022. "Applications of q-Derivative Operator to the Subclass of Bi-Univalent Functions Involving q-Chebyshev Polynomials," Journal of Mathematics, Hindawi, vol. 2022, pages 1-7, March.
    2. Bilal Khan & Zhi-Guo Liu & Timilehin Gideon Shaba & Serkan Araci & Nazar Khan & Muhammad Ghaffar Khan, 2022. "Applications of q‐Derivative Operator to the Subclass of Bi‐Univalent Functions Involving q‐Chebyshev Polynomials," Journal of Mathematics, John Wiley & Sons, vol. 2022(1).
    3. Saeid Shams & S. R. Kulkarni & Jay M. Jahangiri, 2004. "Classes of uniformly starlike and convex functions," International Journal of Mathematics and Mathematical Sciences, Hindawi, vol. 2004, pages 1-3, January.
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