%0 Journal Article
%T Homotopy sequence of a topological groupoid with a basegroup and an obstruction to presentability of proper regular Lie groupoids
%A B. Jelenc
%A J. Mrcun
%J Mathematics
%D 2012
%I arXiv
%X A topological groupoid G is K-pointed, if it is equipped with a homomorphism from a topological group K to G. We describe the homotopy groups of such K-pointed topological groupoids and relate these groups to the ordinary homotopy groups in terms of a long exact sequence. As an application, we give an obstruction to presentability of proper regular Lie groupoids.
%U http://arxiv.org/abs/1206.5763v3