Abstract
We show that a bi-Lipschitz mapF from a subset of a line or a circle into the plane can be extended to a bi-Lipschitz map of the whole plane onto itself, with the bi-Lipschitz constant depending only on that ofF.
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This research was supported in part by NSF Grant DMS-9305792.
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MacManus, P. Bi-lipschitz extensions in the plane. J. Anal. Math. 66, 85–115 (1995). https://doi.org/10.1007/BF02788819
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DOI: https://doi.org/10.1007/BF02788819