marjono@ub.ac.id Marjono
It is shown that iff is analytic in D = (z: πzπ < 1), with f(0) = f'(0) - 1 = 0, then for implies, where, and that B(γ) is the largest number such that this implication holds. © 2017 Austral Internet Publishing.
Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Brawijaya, Jl. Veteran Malang, 65145, Indonesia
