Partially hyperbolic fixed points with constraints

Bonckaert, Patrick

doi:10.1090/S0002-9947-96-01469-9

Partially hyperbolic fixed points with constraints
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Trans. Amer. Math. Soc. 348 (1996), 997-1011 Request permission

Abstract:

We investigate the local conjugacy, at a partially hyperbolic fixed point, of a diffeomorphism (vector field) to its normally linear part in the presence of constraints, where the change of variables also must satisfy the constraints. The main result is applied to vector fields respecting a singular foliation, encountered, by F. Dumortier and R. Roussarie, in the desingularization of families of vector fields.

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