Much discussion on Math Overflow has not resolved the following should-be-easy question:
Give an example of a curve in 
Surely there is one! But then again, you’d probably say “surely there’s a curve over
Much discussion on Math Overflow has not resolved the following should-be-easy question:
Give an example of a curve in
Surely there is one! But then again, you’d probably say “surely there’s a curve over
Would you be willing to tag this post “PlanetMO” so that it can be found via mathblogging.org/planetmo ?
done!
Thanks!
Dear Jordan — I think you should remove the overline from Mgbar. I am sure there are curves completely contained in the boundary which are not families of 4-branched covers (for any of the usual extensions of this notion to the boundary). Best — Jason
done, Jason.
[...] paper is related to the question I discussed last week about “4-branched Belyi” — or rather the theorem of Diaz-Donagi-Harbater that inspired our paper is related to that [...]