In this work, a new subclass of univalent function was defined using the Sălăgean differential operator involving the modified sigmoid function and the Chebyshev polynomials. The coefficient bounds and the Fekete-Szego functional of this class were obtained using subordination principle. The results obtained agree and extend some earlier results.
Fadipe-Joseph, O., Kadir, B., Akinwumi, S., & Adeniran, E. (2018). Polynomial Bounds for a Class of Univalent Function Involving Sigmoid Function. Khayyam Journal of Mathematics, 4(1), 88-101. doi: 10.22034/kjm.2018.57721
MLA
Olubunmi A. Fadipe-Joseph; Bilikis B. Kadir; Sunday E. Akinwumi; Esther O. Adeniran. "Polynomial Bounds for a Class of Univalent Function Involving Sigmoid Function". Khayyam Journal of Mathematics, 4, 1, 2018, 88-101. doi: 10.22034/kjm.2018.57721
HARVARD
Fadipe-Joseph, O., Kadir, B., Akinwumi, S., Adeniran, E. (2018). 'Polynomial Bounds for a Class of Univalent Function Involving Sigmoid Function', Khayyam Journal of Mathematics, 4(1), pp. 88-101. doi: 10.22034/kjm.2018.57721
VANCOUVER
Fadipe-Joseph, O., Kadir, B., Akinwumi, S., Adeniran, E. Polynomial Bounds for a Class of Univalent Function Involving Sigmoid Function. Khayyam Journal of Mathematics, 2018; 4(1): 88-101. doi: 10.22034/kjm.2018.57721