ABSTRACT
Let A be the class of analytic functions f(z) in the open unit disk U = {z ∊ ℂ : |z| < 1}, normalized by f(0) = 0 = f′(0) – 1, in the form () f ( z ) = z + a 2 z 2 + a 3 z 3 + ⋯ + a n z n + ⋯ = z + ∑ n = 2 ∞ a n z n , a n ∈ ℂ . https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781351142120/c81116b1-56b8-4322-b026-4912085dda0d/content/eq6034.tif"/>
