Initial Estimates of Seven Coefficients for a Subclass of Bi-Starlike Functions

被引:0
作者
T. Janani
S. Yalçın
机构
[1] Vellore Institute of Technology,School of Computer Science and Engineering
[2] Bursa Uludag University,undefined
来源
Ukrainian Mathematical Journal | 2022年 / 73卷
关键词
D O I
暂无
中图分类号
学科分类号
摘要
We study a subclass of bi-starlike functions and obtain, for the first time, the initial seven Taylor– Maclaurin coefficient estimates |a2|, |a3|, . . . , |a7| for functions from a subclass of the function class Σ. Some new or known consequences of the accumulated results are also pointed out.
引用
收藏
页码:1825 / 1834
页数:9
相关论文
共 23 条
  • [1] Bakhtin AK(2019)Weakened problem on extremal decomposition of the complex plane Mat. Stud. 51 35-40
  • [2] Denega IV(1986)On some classes of bi-univalent functions Studia Univ. Babe¸s–Bolyai Math. 31 70-77
  • [3] Brannan DA(2019)Estimates of the inner radii of nonoverlapping domains J. Math. Sci. (N.Y.) 242 787-795
  • [4] Taha TS(2017)Estimates of products of inner radii of nonoverlapping domains in the complex plane Complex Var. Elliptic Equat. 62 1611-1618
  • [5] Denega I(2013)Certain subclasses of bi-univalent functions satisfying subordinate conditions J. Class. Anal. 2 49-60
  • [6] Denega IV(2018)New subclass of pseudo-type meromorphic bi-univalent functions of complex order Novi Sad J. Math. 48 93-102
  • [7] Zabolotnii YV(1967)On a coefficient problem for bi-univalent functions Proc. Amer. Math. Soc. 18 63-68
  • [8] Deniz E(2015)Subclasses of bi-univalent functions of complex order based on subordination conditions involving wright hypergeometric functions J. Math. Fundam. Sci. 47 60-75
  • [9] Janani T(1969)The minimal distance of the image boundary from the origin and the second coefficient of a univalent function in Arch. Ration. Mech. Anal. 32 100-112
  • [10] Murugusundaramoorthy G(2010) 1 Appl. Math. Lett. 23 1188-1192