Skip to main content
3 events
when toggle format what by license comment
Jul 28, 2012 at 15:20 comment added Will Sawin Yes, since intermediate covers correspond to subgroups of the Galois group. Take the kernel onto the projection of each cyclic factor, and then take the fiber product.
Jul 28, 2012 at 8:14 comment added Jack I don't know, my own guess was that the formula should look like this. But is it a well known theorem that every abelian covers are fiber product of the cyclic ones?
Jul 27, 2012 at 23:04 history answered Will Sawin CC BY-SA 3.0