The Sharp Bound of the Third Hankel Determinant for the Inverse of Bounded Turning Functions
Karri Sanjay Kumar, Biswajit Rath, Vamshee Krishna D. · Contemporary Mathematics · 2023
The objective of this paper is to estimate the best possible upper bound to the third Hankel determinant for the inverse of functions with normalized conditions f (0) = 0, f ′(0) = 1 in the unit disc whose derivative has positive real part.