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Title: Finite jet determination of local analytic CR automorphisms and their parametrization by 2-jets in the finite type case.
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Keywords: Pure & Applied Mathematics
Issue Date: 2003
Publisher: Geometric And Functional Analysis
Citation: Ebenfelt, P.; Lamel, B.; Zaitsev, D. 'Finite jet determination of local analytic CR automorphisms and their parametrization by 2-jets in the finite type case' in Geometric And Functional Analysis, 13, (3), 2003, pp 546 - 573
Series/Report no.: Geometric And Functional Analysis
Abstract: We show that germs of local real-analytic CR automorphisms of a real-analytic hypersurface M in C2 at a point p ∈ M are uniquely determined by their jets of some finite order at p if and only if M is not Levi-flat near p. This seems to be the first necessary and sufficient result on finite jet determination and the first result of this kind in the infinite type case. If M is of finite type at p, we prove a stronger assertion: the local real-analytic CR automorphisms of M fixing p are analytically parametrized (and hence uniquely determined) by their 2-jets at p. This result is optimal since the automorphisms of the unit sphere are not determined by their 1-jets at a point of the sphere.
Description: PUBLISHED
Appears in Collections:Pure & Applied Mathematics (Scholarly Publications)

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