bio | website | |
---|---|---|
location | Brazil | |
age | ||
visits | member for | 4 years, 8 months |
seen | Oct 21 at 23:09 | |
stats | profile views | 669 |
I'm a graduat student at the Instituto de Matemática Pura e Aplicada (IMPA), Rio de Janeiro, Brazil.
email: [the shortest string of letters containing my first name and last name as substrings]@gmail.com
Oct 14 |
revised |
Does for every vector field there always exist a volume form for which the vector field is a homothety?
added 15 characters in body |
Oct 14 |
revised |
Does for every vector field there always exist a volume form for which the vector field is a homothety?
added 40 characters in body |
Oct 14 |
answered | Does for every vector field there always exist a volume form for which the vector field is a homothety? |
Oct 14 |
revised |
Manifolds admitting flat connections
edited body |
Oct 14 |
revised |
Manifolds admitting flat connections
added 8 characters in body |
Oct 14 |
revised |
Manifolds admitting flat connections
added 8 characters in body |
Oct 13 |
comment |
Manifolds admitting flat connections
I corrected the "symmetric flat" thing. I like the idea of using Cartan-Hadamard to prove that spheres don't admit torsionfree flat connections. This saves the task of proving that only toruses admit free $\mathbb R^n$ actions, which is something I didn't do in my answer. |
Oct 13 |
revised |
Manifolds admitting flat connections
added 164 characters in body |
Oct 12 |
answered | Manifolds admitting flat connections |
Sep 24 |
awarded | Autobiographer |
Sep 12 |
comment |
Does anyone know an intuitive proof of the Birkhoff ergodic theorem?
If $f\equiv 1$ and $T=I$ we have $M_T'\equiv+\infty$, so the recurrence formula is $+\infty + f=+\infty$, which is useless. Am I missing something? |
Aug 23 |
awarded | Nice Answer |
Aug 12 |
revised |
real symmetric matrix has real eigenvalues - elementary proof
added 391 characters in body |
Aug 12 |
revised |
real symmetric matrix has real eigenvalues - elementary proof
added 391 characters in body |
Aug 12 |
revised |
real symmetric matrix has real eigenvalues - elementary proof
added 391 characters in body |
Aug 6 |
revised |
real symmetric matrix has real eigenvalues - elementary proof
added 1 character in body |
May 28 |
awarded | Necromancer |
May 27 |
awarded | Yearling |
May 27 |
answered | Can the unsolvability of quintics be seen in the geometry of the icosahedron? |
May 6 |
awarded | Popular Question |