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Article
Conormal suspensions of differential complexes
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Article
Integrability of rough almost complex structures
We extend the Newlander-Nirenberg theorem to manifolds with almost complex structures that have somewhat less than Lipschitz regularity. We also discuss the regularity of local holomorphic coordinates in the i...
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Chapter and Conference Paper
A Car as Parabolic Geometry
We show that a car, viewed as a nonholonomic system, provides an example of a flat parabolic geometry of type (SO(2, 3), P 12), where P 12 is a Borel parabolic subgroup in SO(2, 3). We discuss the relations of th...