Coefficient Estimates for Starlike and Convex Functions Related to Sigmoid Functions

被引:0
|
作者
M. Raza
D. K. Thomas
A. Riaz
机构
[1] Government College University Faisalabad,Department of Mathematics
[2] Swansea University,Department of Mathematics
[3] Bay Campus,undefined
[4] COMSATS University Islamabad,undefined
[5] Lahore Campus,undefined
来源
Ukrainian Mathematical Journal | 2023年 / 75卷
关键词
D O I
暂无
中图分类号
学科分类号
摘要
We give sharp coefficient bounds for starlike and convex functions related to modified sigmoid functions. We also provide some sharp coefficient bounds for the inverse functions and sharp bounds for the initial logarithmic coefficients and some coefficient differences.
引用
收藏
页码:782 / 799
页数:17
相关论文
共 50 条
  • [1] Coefficient Estimates for Starlike and Convex Functions Related to Sigmoid Functions
    Raza, M.
    Thomas, D. K.
    Riaz, A.
    UKRAINIAN MATHEMATICAL JOURNAL, 2023, 75 (5) : 782 - 799
  • [2] Coefficient estimates for starlike and convex functions associated with cosine function
    Marimuthu, Krishnan
    Uma, Jayaraman
    Bulboaca, Teodor
    HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS, 2023, 52 (03): : 596 - 618
  • [3] Coefficient estimates for the family of starlike and convex functions of reciprocal order
    Sudhananda Maharana
    Deepak Bansal
    Afrika Matematika, 2022, 33
  • [4] Coefficient estimates for the family of starlike and convex functions of reciprocal order
    Maharana, Sudhananda
    Bansal, Deepak
    AFRIKA MATEMATIKA, 2022, 33 (01)
  • [5] Hankel determinants for starlike and convex functions associated with sigmoid functions
    Riaz, Amina
    Raza, Mohsan
    Thomas, Derek K.
    FORUM MATHEMATICUM, 2022, 34 (01) : 137 - 156
  • [6] Coefficient Estimates for a Subclass of Starlike Functions
    Raducanu, Dorina
    MATHEMATICS, 2020, 8 (10)
  • [7] Coefficient inequalities for certain starlike and convex functions
    Kumar, Sushil
    Cetinkaya, Asena
    HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS, 2022, 51 (01): : 156 - 171
  • [9] Coefficient Estimates in a Class of Strongly Starlike Functions
    Sokol, Janusz
    KYUNGPOOK MATHEMATICAL JOURNAL, 2009, 49 (02): : 349 - 353
  • [10] On coefficient estimates for a certain class of starlike functions
    Raina, Ravinder Krishna
    Sokol, Janusz
    HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS, 2015, 44 (06): : 1427 - 1433