COEFFICIENT ESTIMATES FOR A CERTAIN SUBCLASS OF BI- UNIVALENT FUNCTIONS

Altınkaya Ş., Yalcin S.

MATEMATICHE, vol.71, no.2, pp.53-61, 2016 (ESCI) identifier

  • Publication Type: Article / Article
  • Volume: 71 Issue: 2
  • Publication Date: 2016
  • Doi Number: 10.4418/2016.71.2.5
  • Journal Name: MATEMATICHE
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
  • Page Numbers: pp.53-61
  • Keywords: Analytic and univalent functions, bi-univalent functions, bi-starlike and bi-convex functions, coefficient bounds, GENERAL SUBCLASS
  • Bursa Uludag University Affiliated: Yes

Abstract

In the present investigation, we find estimates on the coefficients broken vertical bar a(2) broken vertical bar and broken vertical bar a(3) broken vertical bar for functions in the function class S-Sigma ( lambda,h). The results presented in this paper improve or generalize the recent work of Magesh and Yamini.