The Lie group of bisections of a Lie groupoid

@article{Schmeding2014TheLG,
  title={The Lie group of bisections of a Lie groupoid},
  author={Alexander Schmeding and Christoph Wockel},
  journal={Annals of Global Analysis and Geometry},
  year={2014},
  volume={48},
  pages={87-123}
}
In this article, we endow the group of bisections of a Lie groupoid with compact base with a natural locally convex Lie group structure. Moreover, we develop thoroughly the connection to the algebra of sections of the associated Lie algebroid and show for a large class of Lie groupoids that their groups of bisections are regular in the sense of Milnor. 
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