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Some estimates in an annulus for weakly schlicht functions, omitting values on circles. (English) Zbl 0498.30011

MSC:

30C25 Covering theorems in conformal mapping theory
30C45 Special classes of univalent and multivalent functions of one complex variable (starlike, convex, bounded rotation, etc.)
30C75 Extremal problems for conformal and quasiconformal mappings, other methods