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Sheaves of nonlinear generalized functions and manifold-valued distributions

By Michael Kunzinger, Roland Steinbauer and James A. Vickers


This paper is part of an ongoing program to develop a theory of generalized differential geometry. We consider the space G[X,Y] of Colombeau generalized functions defined on a manifold X and taking values in a manifold Y. This space is essential in order to study concepts such as flows of generalized vector fields or geodesics of generalized metrics. We introduce an embedding of the space of continuous mappings C(X,Y) into G[X,Y] and study the sheaf properties of G[X,Y]. Similar results are obtained for spaces of generalized vector bundle homomorphisms. Based on these constructions we propose the definition of a space D'[X,Y] of distributions on X taking values in Y. D'[X,Y] is realized as a quotient of a certain subspace of G[X,Y

Topics: QA
Year: 2009
OAI identifier: oai:eprints.soton.ac.uk:66525
Provided by: e-Prints Soton

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