Just some guy who likes math (and sadly, is very slow with it).
Studying Bachelor in Mathematics, in University of São Paulo.
I like differential geometry, and I'm giving my first steps in semi-riemannian geometry.
The best answers I've given here so far, in my opinion:
Here is a forum about math and physics that I moderate with some friends, check it out. Only in portuguese, now, and it is new, so it is still growing
My previous avatars: