Mathematics – Metric Geometry
Scientific paper
2010-05-20
Mathematics
Metric Geometry
To appear in the Proceedings of International Conference on Complex Analysis & Dynamical Systems IV May 18-22, 2009 Nahariya,
Scientific paper
We provide an axiomatic approach to the theory of local tangent cones of regular sub-Riemannian manifolds and the differentiability of mappings between such spaces. This axiomatic approach relies on a notion of a dilation structure which is introduced in the general framework of quasimetric spaces. Considering quasimetrics allows us to cover a general case including, in particular, minimal smoothness assumptions on the vector fields defining the sub-Riemannian structure. It is important to note that the theory existing for metric spaces can not be directly extended to quasimetric spaces.
Selivanova Svetlana
Vodopyanov Sergey
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