- Turkish Journal of Mathematics
- Vol: 42 Issue: 4
- Second Hankel determinant for certain subclasses of bi-univalent functions involving Chebyshev polyn...
Second Hankel determinant for certain subclasses of bi-univalent functions involving Chebyshev polynomials
Authors : Halit Orhan, Evrim Toklu, Ekrem Kadioğlu
Pages : 1927-1940
View : 17 | Download : 5
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :In this paper our purpose is to find the upper bound estimate for the second Hankel determinant $|a_{2}a_{4}-a_{3}^{2}|$ for functions defined by convolution belonging to the class $\mathcal{N}_{\sigma}^{\mu,\delta}(\lambda,t)$ by using Chebyshev polynomials.Keywords : Univalent function, bi-univalent function, coefficient bounds, Chebyshev polynomial, Hankel determinant, convolution