## Hankel determinant for starlike and convex functions of order alpha## D. Vamshee Krishna, T. Ramreddy
The objective of this paper is to obtain an upper bound to the second Hankel determinant |a
_{2} a_{4}-a_{3}^{2}|
for starlike and convex functions of order
α (0 ≤ α<1)
also for the inverse function of f,
belonging to the class of convex functions of order α, using Toeplitz determinants.
Tbilisi Mathematical Journal, Vol. 5(1) (2012), pp. 65-76 |