On the Hadamard products of schlicht fun
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Q. I. Rahman; J. Stankiewicz
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Article
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1982
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John Wiley and Sons
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English
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A function q ( z ) is said to be convex if it is a univalent conformal mapping of the unit disk 1x1 -= 1, hereafter called U , onto a convex domain. The HADAMARD product or convolution of two power series f ( 2 ) : = anzn and g(x) : = b,znis defined as the power series (f\*g) ( x ) : = anb,xn. The f