Department of

August 2017September 2017October 2017 Su Mo Tu We Th Fr Sa Su Mo Tu We ThFrSa Su Mo Tu We Th Fr Sa 1 2 3 4 5 1 2 1 2 3 4 5 6 7 6 7 8 9 10 11 12 3 4 5 6 7 8 9 8 9 10 11 12 13 14 13 14 15 16 17 18 19 10 11 12 13 14 15 16 15 16 17 18 19 20 21 20 21 22 23 24 25 26 17 18 19 20 212223 22 23 24 25 26 27 28 27 28 29 30 31 24 25 26 27 28 29 30 29 30 31

Monday, September 18, 2017

**Abstract:** Historically, local Lie groups were studied before Lie groups. Surprisingly, not every local Lie group can be embedded into a Lie group, and a theorem by Mal'cev shows that the obstructions to such embeddings can be understood in terms of the associativity of the local Lie group. In this talk, I will explain Mal'cev's theorem and show how it generalizes to the groupoid setting. Then, I will point out an intimate connection between this result, and the theory of integrability of Lie algebroids.

Tuesday, September 19, 2017

Wednesday, September 20, 2017

Thursday, September 21, 2017

Friday, September 22, 2017