Journals / Konuralp Journal of Mathematics / 2018 / Cilt: 6 - Sayı: 2

On Subclasses Of Bi-Starlike Functions Defined By Tremblay Fractional Derivative Operator

Pages
226–232
Publication Date
2018-10-15
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Theorems proved in this paper generalizes the results given in [3].

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this paper, we introduce and investigate new subclasses of strongly bi-starlike and bi-starlike functions defined by Tremblay fractional derivative operator in the open unit disk.
📊
Key Findings & Data:Also we obtain upper bounds for the coefficients $|a_{2}|$ and $|a_{3}|$ of functions belonging to these classes.
💡
Conclusion & Impact:Theorems proved in this paper generalizes the results given in [3].
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:bi-starlike functions · Coefficient bounds and coefficient estimates · Fractional derivative

Abstract

In this paper, we introduce and investigate new subclasses of strongly bi-starlike and bi-starlike functions defined by Tremblay fractional derivative operator in the open unit disk. Also we obtain upper bounds for the coefficients $|a_{2}|$ and $|a_{3}|$ of functions belonging to these classes. Unlike recent studies, we use different technique for obtain the upper bounds on the coefficients $|a_{3}|$. Theorems proved in this paper generalizes the results given in [3].

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Cite This Article

EKER, S. S., ŞEKER, B. (2018). On Subclasses Of Bi-Starlike Functions Defined By Tremblay Fractional Derivative Operator. Konuralp Journal of Mathematics, Cilt: 6 - Sayı: 2, 226–232. https://ajindex.com/articles/786552

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References (16)

  1. G. Akın and S. S¨umer Eker, Coefficient estimates for a certain class of analytic and bi-univalent functions defined by fractional derivative, C. R. Acad. Sci. S´er. I 352 (2014), 1005–1010
  2. R.M. Ali, S.K. Lee, V. Ravichandran, S. Supramaniam, Coefficient estimates for bi-univalent Ma-Minda starlike and convex functions, Applied Mathematics Letters, 25 (2012) 344-351
  3. D.A. Brannan, T.S. Taha, On some classes of bi-univalent functions, in: S.M. Mazhar, A. Hamoui, N.S. Faour (Eds.), Mathematical Analysis and Its Applications, Kuwait; February 18-21, 1985, in: KFAS Proceedings Series, vol. 3, Pergamon Press, Elsevier Science Limited, Oxford, 1988, pp. 53-60. See also Studia Univ. Babes¸-Bolyai Math. 31 (2) (1986) 70-77
  4. P.L. Duren, Univalent Functions, in: Grundlehren der Mathematischen Wissenschaften, Band 259, Springer-Verlag, New York, Berlin, Heidelberg and Tokyo, 1983
  5. Z. Esa, A. Kilicman, R.W. Ibrahim, M. R.Ismail and S. K. S. Husain, Application of Modified Complex Tremblay Operator, AIP Conference Proceedings 1739, 020059 (2016);
  6. B.A. Frasin and M.K. Aouf, New subclasses of bi-univalent functions, Applied Mathematics Letters, 24 (2011), 1569-1573
  7. R.W. Ibrahim, J.M. Jahangiri, Boundary fractional differential equation in a complex domain, Boundary Value Problems (2014); Article ID 66: 1 – 11
  8. S. S. Kumar, V. Kumar and V. Ravichandran, Estimates for the initial coefficients of bi-univalent functions, Tamsui Oxford J. Inform. Math. Sci. 29 (2013), 487–504
  9. M. Lewin, On a coefficient problem for bi-univalent functions, Proc. Amer. Math. Soc. 18 (1967) 63-68
  10. N. Magesh and J. Yamini, Coefficient bounds for a certain subclass of bi-univalent functions, Internat. Math. Forum 27 (2013), 1337–1344
  11. S. Owa, On the distortion theorems I, Kyungpook Math. J. 18 (1978), 53-59
  12. S. Owa and H.M.Srivastava, Univalent and starlike generalized hypergeometric functions, Canad. J. Math. 39 (1987 ), 1057-1077
  13. Ch. Pommerenke, Univalent functions, G¨ottingen: Vandenhoeck Ruprecht 1975 [14] W.Rudin, Real and Complex Analysis, McGraw-Hill Education; 3 edition (May 1, 1986
  14. H. M. Srivastava and D. Bansal, Coefficient estimates for a subclass of analytic and bi-univalent functions, J. Egyptian Math. Soc. 23 (2015), 242–246
  15. H.M. Srivastava, A.K. Mishra and P. Gochhayat, Certain subclasses of analytic and bi-univalent functions, Appl. Math. Lett. 23 (2010) 1188-1192
  16. H.M. S