Abstract
We consider an arbitrary real analytic family Xz,\(z \in \bar D\), over the closed unit disc\(\bar D\), of real analytic plane Jordan curves Xz. Ifj e iθ,e iθ ∋ ∂D, is an arbitrary real-analytic family of orientation-reversing homeomorphisms of\(\bar {\mathbb{C}}\) fixingX e iθ pointwise, we show that there is a unique holomorphic motion of\(\bar {\mathbb{C}}\) extending the given motion of Jordan curves and consistent with the given family of involutions. If these generalized reflections are defined using the barycentric extension construction of Douady-Earle-Nag, then the resulting extension method for holomorphic motions of X is natural, that is Moebius-invariant and continuous with respect to variation of the given motion of X0.
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Communicated by John Mather
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Slodkowski, Z. Natural extensions of holomorphic motions. J Geom Anal 7, 637–651 (1997). https://doi.org/10.1007/BF02921638
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DOI: https://doi.org/10.1007/BF02921638