Abstract.
The regular type of a real hyper-surface M in an (almost) complex manifold at some point p is the maximal contact order at p of M with germs of non singular (pseudo) holomorphic disks. The main purpose of this paper is to give two intrinsic characterizations the type : one in terms of Lie brackets of a complex tangent vector field on M, the other in terms of some kind of derivatives of the Levi form.
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Mathematics Subject Classification (2000): 32T25,32Q60
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Barraud, JF., Mazzilli, E. Regular type of real hyper-surfaces in (almost) complex manifolds. Math. Z. 248, 757–772 (2004). https://doi.org/10.1007/s00209-004-0679-3
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DOI: https://doi.org/10.1007/s00209-004-0679-3