Sokol, J., İlhan, S. & Güney, H. Ö. (2018). Second Hankel determinant problem for several classes of analytic functions related to shell-like curves connected with Fibonacci numbers. TWMS Journal Of Applied And Engineering Mathematics, 8(1A), 220-229.
Abstract
In this paper, we investigate upper bounds for the second Hankel determinant in several classes of analytic functions in the open unit disc, related to shell-like curves and connected with Fibonacci numbers.