COEFFICIENT ESTIMATES FOR A CERTAIN SUBCLASS OF BI- UNIVALENT FUNCTIONS

Altınkaya Ş., Yalcin S.

MATEMATICHE, cilt.71, sa.2, ss.53-61, 2016 (ESCI) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 71 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.4418/2016.71.2.5
  • Dergi Adı: MATEMATICHE
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
  • Sayfa Sayıları: ss.53-61
  • Anahtar Kelimeler: Analytic and univalent functions, bi-univalent functions, bi-starlike and bi-convex functions, coefficient bounds, GENERAL SUBCLASS
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

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.