4,101 reputation
21647
bio website bruno.stonek.com
location Montevideo, Uruguay
age 25
visits member for 3 years, 9 months
seen 3 hours ago

Math student in Université Paris 13.


May
14
comment What should a student (with algebraic-geometry minded) study in differential geometry?
Isn't just studying differential geometry good enough for every purpose? Just a thought.
May
8
comment Limit Creating Functor
What is the question?
May
3
comment In a Morita context ($A, B, P, Q, f, g$), why are $P$ and $Q$ projective if $f$ is surjective?
No problem. You can upvote if you think it's useful. If you have any more questions, post them here as a comment and I'll try to help out.
May
3
answered In a Morita context ($A, B, P, Q, f, g$), why are $P$ and $Q$ projective if $f$ is surjective?
May
1
accepted What does $ds^2$ mean and how does it specify a metric?
May
1
accepted Interpreting results concerning the global sections ring being finitely generated
Apr
23
comment Question about Hopf-Rinow theorem
Have you checked do Carmo's "Riemannian geometry" book? The Hopf-Rinow theorem is there on pages 146-148, and he proves the equivalence of these two statements.
Apr
23
comment Question about Hopf-Rinow theorem
Does ANII mean "Axiom of Numerability number II"? Also, I don't see where the question is. Are you asking why those two statements are equivalent?
Apr
23
comment Suggestion about Algebraic Topology talk
You could look at R. Brown's "Topology and groupoids" book.
Apr
23
revised What is the suspension used in the Freudenthal suspension theorem?
added 117 characters in body
Apr
23
comment What is the suspension used in the Freudenthal suspension theorem?
@Rhoswyn: I think you are asking how to explicitly define $\Sigma f$ for an arrow $f$. I've included this in my answer.
Apr
23
revised What is the suspension used in the Freudenthal suspension theorem?
added 90 characters in body
Apr
23
comment What is the suspension used in the Freudenthal suspension theorem?
+1! I've expanded my answer to include some stuff that in particular explains how to obtain the suspension from two cones.
Apr
23
revised What is the suspension used in the Freudenthal suspension theorem?
added 354 characters in body
Apr
23
comment What is the suspension used in the Freudenthal suspension theorem?
You should remove the tag "fiber bundles"... They really don't appear in your question. Also, John is right (see my answer).
Apr
23
comment What is the suspension used in the Freudenthal suspension theorem?
Does this answer your question or is there something that you'd like me to expand?
Apr
23
answered What is the suspension used in the Freudenthal suspension theorem?
Apr
21
awarded  Popular Question
Apr
21
comment Is there a category of categories?
@user132181 Yes, sort of. See my first answer to the OP.
Apr
20
comment A few identities on differential forms
Have you checked Lee's "Introduction to Smooth Manifolds"? Whatever he proves he does it very thoroughly.