Skip to main content

Timeline for What are orbifolds with corners?

Current License: CC BY-SA 4.0

3 events
when toggle format what by license comment
Jul 1, 2019 at 1:35 comment added Misha @AndréHenriques: OP asked to give a definition in terms of charts, which is what I am doing. As for which definition is the best, I think it is all in the eye of the beholder...
Jun 30, 2019 at 23:05 comment added André Henriques Orbifold atlases are quite messy (and many people have gotten muddled in the details, and thus ended up writing slightly wrong definitions). I recommend modelling orbifolds as Lie groupoids: that's a much safer way of developing the theory. Once you understand how Lie groupoids work, it's an easy step to go from there to groupoid objects in the category of manifolds with corners.
Jun 28, 2019 at 19:25 history answered Misha CC BY-SA 4.0