Nonlinear tensor distributions on Riemannian manifolds

Details Nonlinear tensor distributions on Riemannian manifolds Nonlinear tensor distributions on Riemannian manifolds

2011-04-05

arxiv.org/abs/1104.0829v1

Mathematics

Differential Geometry

Scientific paper

We construct an algebra of nonlinear generalized tensor fields on manifolds in the sense of J.-F. Colombeau, i.e., containing distributional tensor fields as a linear subspace and smooth tensor fields as a faithful subalgebra. The use of a background connection on the manifold allows for a simplified construction based on the existing scalar theory of full diffeomorphism invariant Colombeau algebras on manifolds, still having a canonical embedding of tensor distributions. In the particular case of the Levi-Civita connection on Riemannian manifolds one obtains that this embedding commutes with pullback along homotheties and Lie derivatives along Killing vector fields only.

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