Coefficient Estimates for a General Subclass of Analytic and Bi-Univalent Functions

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Srivastava H. M. , Bulut S. , Caglar M., Yagmur N.

FILOMAT, cilt.27, ss.831-842, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 27
  • Basım Tarihi: 2013
  • Doi Numarası: 10.2298/fil1305831s
  • Dergi Adı: FILOMAT
  • Sayfa Sayıları: ss.831-842


In this paper, we introduce and investigate an interesting subclass N-Sigma(h,p) (lambda, mu) of analytic and bi-univalent functions in the open unit disk U. For functions belonging to the class N-Sigma(h,p) (lambda, mu), we obtain estimates on the first two Taylor-Maclaurin coefficients |a(2)| and |a(3)|. The results presented in this paper would generalize and improve some recent works of Caglar et al. [3], Xu et al. [10], and other authors.