4,141 reputation
21647
bio website bruno.stonek.com
location Montevideo, Uruguay
age 25
visits member for 3 years, 10 months
seen 39 mins ago

Math student in Université Paris 13.


Feb
21
answered Best Sets of Lecture Notes and Articles
Feb
5
asked The standard connection in a regular surface is symmetric
Feb
4
asked What does $ds^2$ mean and how does it specify a metric?
Jan
31
asked Is every compact hypersurface contained in a sphere which it touches twice?
Jan
31
answered Any compact embedded $2$-dimensional hypersurface in $\mathbb R^3$ has a point of positive Gaussian curvature
Jan
28
asked Does the gradient always point outward of a level surface?
Jan
20
asked If $\operatorname{dim} M > \operatorname{dim} N$, is there an injective smooth map $M\to N$?
Jan
17
asked When do regular values form an open set?
Jan
11
answered Dual notion of free module
Nov
30
answered $\mathrm{Spec}(R)\!=\!\mathrm{Max}(R)\!\cup\!\{0\}$ $\Rightarrow$ $R$ is a PID
Nov
24
answered Freyd-Mitchell's embedding theorem
Nov
24
asked Are fixed fields of finite subgroups generated by symmetric polynomials on Galois conjugates?
Nov
2
asked Proving the class number of $\mathbb{Q}(\sqrt{-5})$ is 2 using Ireland-Rosen's bound
Oct
5
answered Splicing together Short Exact Sequences
Sep
4
answered Abstract nonsense proof of the cocompleteness of the category of groups
Aug
9
asked Abstract nonsense proof of the cocompleteness of the category of groups
Jul
19
answered Graph $y=1/\sin x$
Jul
19
answered Why is associativity required for groups?
May
11
answered Codomains, products and limits
Apr
30
asked Explicit isomorphism $\tilde{H_n}(X)\simeq \tilde{H}_{n+1}(SX)$.