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The Fekete-Szegö inequality for subclass of analytic functions of complex order

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in the present investigation, we obtain sharp upper bounds for the Fekete-Szegö coefficient funtional (formual) for certain normalized analyric funtions defined on the open unit disk in the complex plane. As an application of the main result, the anrhours obtain the Fekete-Szegö inequality for a class of funtions defined through fractional derivatives.

Abstract

in the present investigation, we obtain sharp upper bounds for the Fekete-Szegö coefficient funtional (formual) for certain normalized analyric funtions defined on the open unit disk in the complex plane. As an application of the main result, the anrhours obtain the Fekete-Szegö inequality for a class of funtions defined through fractional derivatives.

참고문헌 (25)

  1. Halit Orhan, "The Fekete-Szeg"o Problem for A Generalized Subclass of An-alytic Functions", Kyungpook Mathematical Journal, 50(1), pp.37~47 (2010), 경북대학교 자연과학대학 수학과
  2. P. L. Duren, "Univalent Functions, Grundlehren der Mathematischen Wissenschaften, vol. 259" (1983), Springer-Verlag
  3. J. Dziok, "Families of analytic functions associated with the Wright generalized hypergeometric function", Demonstratio Math., 37(3), pp.533~542 (2004)
  4. J. Dziok, "Certain subclasses of analytic functions associated with the generalized hypergeometric function", Intergral Transform Spec. Funct., 14, pp.7~18 (2003)
  5. A. W. Goodman, "Univalent Functions, Vol. I and II" (1983), Mariner Publishing Company Inc.
  6. F. R. Keogh, "A coecient inequality for certain classes of analytic functions", Proc. Amer. Math. Soc, 20, pp.8~12 (1969)
  7. W. Koepf, "On the Fekete- Szego problem for close-to-convex functions", Proc. Amer. Math. Soc, 101, pp.89~95 (1987)
  8. Yu. E. Hohlov, "Convolution operators that preserve univalent functions", Ukrain. Mat. Zh, 37, pp.220~226 (1985)
  9. Yu. E. Hohlov, "Hadamard convolutions, hypergeometric functions and linear operators in the class of univalent functions", Dokl. Akad. Nauk Ukrain. SSR Ser. A, (7), pp.25~27 (1984)
  10. R. J. Libera, "Some radius of convexity problems", Duke Math. J, (31), pp.143~157 (1964)
  11. R. J. Libera, "Coecient bounds for the inverse of a function with derivative in P", Proc. Amer. Math. Soc, 87, pp.251~257 (1983)
  12. W. Ma, "A uni ed treatment of some special classes of univalent functions", in: Proceeding of the Conference on Complex Analysis, pp.157~169 (1994)
  13. S. S. Miller, "Di erential Subordinations: Theory and Applications" (2000), Marcel Dekker
  14. M. A. Nasr, "On convex functions of complex order", Mansoura Sci. Bull, pp.565~582 (1982)
  15. M. A. Nasr, "Starlike function of complex order", J. Natur. Sci. Math, 25, pp.1~12 (1985)
  16. H. Orhan, "The Fekete-Szego problem for subclasses of analytic functions de ned by a di erential operator related to conic domains", Comput. Math. Appl, 59, pp.283~295 (2010)
  17. H. Orhan, "Fekete-Szego inequality for certain subclass of analytic functions", General Math, 14, pp.41~54 (2005)
  18. H. Orhan, "Fekete-Szego problem for strongly starlike functions associated with generalized hypergeometric functions", Math. Comput. Modelling, 50, pp.430~438 (2009)
  19. S. Owa, "Univalent and starlike functions generalized by hypergeometric functions", Canad. J. Math, 39, pp.1057~1077 (1987)
  20. C. Pommerenke, "in: Studia Mathematica Mathematische Lehrbucher" (1975), Vandenhoeck and Ruprecht
  21. V. Ravichandran, "Certain subclasses of starlike and convex functions of complex order", Hacet. J. Math. Stat., 34, pp.9~15 (2005)
  22. M. S. Robertson, "On the theory of univalent functions", Ann. Math., 37, pp.374~408 (1936)
  23. L. Spacek, "Prispeek k teori funki prostych", Casopis pest Math. Fys, 62, pp.12~19 (1933)
  24. H. M. Srivastava, "The Fekete-Szego problem for a subclass of close-toconvex functions", Complex Var. Theory Appl., 44, pp.145~163 (2001)
  25. P. Wiatrowski, "The coecients of a certain family of holomorphic functions", Zeszyty Nauk. Uniw. Lodz., Nauki. Mat. Przyrod. Ser. II, 39, pp.75~85 (1971)

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