Seifert Orbifolds
Wednesday, November 18, 2015
 
The quotient of a 3-manifold by an effective action of S1, with- out fixed points, is a classical example of orbifold. But how does that fit within the diffeological frame? That’s what we discuss here. Ref. http://math.huji.ac.il/~piz/documents/DBlog-Rmk-SeifO.pdf