(Department of Mathematics, University of Manitoba)
Lie Groupoids and Geometric Stacks, Part II
|Date||Thursday, April 4, 2019|
This week, we will continue last week's topic by discussing how one may represent Morita equivalence of Lie groupoids via a special type of "morphism" called an invertible bibundle. This will allow us to associate to each Lie groupoid a geometric stack and thereby allow us to convert problems about Lie groupoids up to Morita equivalence into problems about stacks.