Abstract
We prove a global Inverse Map Theorem for a map f from the Heisenberg group into itself, provided the Pansu differential of f is continuous, non singular and satisfies some growth conditions at infinity. An estimate for the Lipschitz constant (with respect to the Carnot–Carathéodory distance in \(\mathbb{H}\)) of a continuously Pansu differentiable map is included. This gives a characterization of (continuously Pansu differentiable) globally biLipscitz deformations of \(\mathbb{H}\) in term of a pointwise estimate of their differential.
Keywords: Inverse problem, Heisenberg group
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Arcozzi, N., Morbidelli, D. A global Inverse Map Theorem and biLipschitz maps in the Heisenberg group . Ann. Univ. Ferrara 52, 189–197 (2006). https://doi.org/10.1007/s11565-006-0015-4
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DOI: https://doi.org/10.1007/s11565-006-0015-4