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In this paper we show that there exists a function f bounded and univalent in the unit disk

functions in the region |ζ|>-1 and in the disk |ζ|<-1. We examine the question of univalent variation

} assuming that the Taylor coefficients of the function log(zf′(z)/f(z)) at zero are nonnegative. We also

of coefficients for functions with restrictions on the pre-Schwarzian derivative. We obtain an estimate, which

In this paper we show that there exists a function f bounded and univalent in the unit disk

of closed and univalent mappings.

In this paper we give an example of two convex functions in | ζ| > 1 whose arithmetic mean

functions in the region |ζ|>-1 and in the disk |ζ|<-1. We examine the question of univalent variation

of closed and univalent mappings.

Страница 3 из 5303