Geodesic
On products of starlike functions. I
Annales Polonici Mathematici, Tome 55 (1991) no. 1, pp. 75-79

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We deal with functions given by the formula $F(z) = zG'(z) = z∏_{j=1}^n (f_j(z)/z)^{a_j}$ where $f_j(z)$ are starlike of order $α_j$ and $a_j$ are complex constants. In particular, radii of starlikeness and convexity as well as orders of starlikeness and convexity are found. 
Georgi Dimkov. On products of starlike functions. I. Annales Polonici Mathematici, Tome 55 (1991) no. 1, pp. 75-79. doi: 10.4064/ap-55-1-75-79
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