The Covariant Picard Groupoid in Differential Geometry
arXiv:math-ph/0509054
Abstract
In this article we discuss some general results on the covariant Picard groupoid in the context of differential geometry and interpret the problem of lifting Lie algebra actions to line bundles in the Picard groupoid approach.
12 pages, LaTeX2e. Talk given at the 20th International Workshop on Differential Geometric Methods in Theoretical Mechanics in Ghent, August 2005