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On Odd Functions of Bounded Boundary Rotation
Published online by Cambridge University Press: 20 November 2018
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Let VK denote the class of functions
that are analytic in the unit disc U, satisfy f′(z) ≠ 0 in U, and map U onto a domain with boundary rotation at most Kπ (for a definition of this concept, see [9]). V. Paatero [9] showed that f(z) ∊ VK if and only if
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- Copyright © Canadian Mathematical Society 1974
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