TY  - JOUR
TI  - Some special families of holomorphic and Sălăgean type bi-univalent functions associated with Horadam polynomials involving a modified sigmoid activation function
AB  - The aim of this paper is to introduce some special families of holomorphic andSu{a}lu{a}gean typebi-univalent functions by making use of Horadam polynomials involving the modified sigmoid activation function$phi(s)=frac{2}{1+e^{-s} },,sgeq0$ in the open unit disc $mathfrak{D}$.We investigate the upper bounds on initial coefficients for functions of the form $g_{phi}(z)=z+sumlimits_{j=2}^{infty}phi(s)d_jz^j$, in these newly introduced special families and also discuss the Fekete-Szegö problem. Some interesting consequences of the results established here are also indicated.
AU  - SWAMY, Swamy S R
AU  - YERRAGUNTA, Dr. Y Sailaja
AU  - BULUT, Serap
DO  - 10.15672/hujms.695858
PY  - 2021
JO  - Hacettepe Journal of Mathematics and Statistics
VL  - 50
IS  - 3
SN  - 1303-5010
SP  - 710
EP  - 720
DB  - TRDizin
UR  - http://search/yayin/detay/494723
ER  -