Reputation
3,603
Top tag
Next privilege 5,000 Rep.
Approve tag wiki edits
Badges
1 10 37
Newest
 Yearling
Impact
~71k people reached

Feb
23
reviewed Close an inequality in Banach algebra
Feb
23
reviewed Leave Open Approximate the size of a set given random items from the set.
Feb
23
reviewed Leave Open I want to find a topologicaly embedding $f : X \rightarrow Y$ and $g: Y \rightarrow X$, yet $X$ is not homeomorphic to $Y$.
Feb
23
reviewed Leave Open Let $(X,d)$ be a compact metric space. Let $f: X \to X$ be such that $d(f(x),f(y)) = d(x,y)$ for all $x,y \in X$. Show that $f $ is onto (surjective).
Feb
13
reviewed Leave Open Real Analysis, using Zorns Lemma
Jan
26
reviewed Close Logic - how to write $\exists !x$ without the $\exists !$ symbol
Oct
30
reviewed Approve How to prove this inequality $\frac{a_{1}a_{2}+a_{2}a_{3}+\cdots+a_{n-1}a_{n}}{a^2_{1}+a^2_{2}+\cdots+a^2_{n}}\le\cos{\frac{\pi}{n+1}}$
Oct
16
reviewed Approve coordinate geometry high level problems
Oct
7
reviewed Approve infinitely many solutions to $\displaystyle x^n + y^n = z^{n+1}$
Jul
10
reviewed Close Proof that arithmetic mean is greater than geometric mean?
Jun
19
reviewed Looks OK $R[x]$ can be an integral extension of $R$?
Jun
19
reviewed Reject For $R$-modules $M,N$, what are sufficient conditions for $\operatorname{Supp}(M\otimes_R N)\subseteq \operatorname{Supp}(\operatorname{Hom}_R(M,N))$?
Jun
19
reviewed Reject Noetherian ring and prime ideal contained in an invertible maximal ideal.
Jun
19
reviewed Leave Open 3 random numbers to describe point on a sphere
Jun
19
reviewed Leave Open Ring of linear transformations modulo finite rank transformations
Jun
19
reviewed Approve An elegant description for graded-module morphisms with non-zero zero component
May
25
reviewed Approve Find a matrix $P$ that orthogonally diagonalizes $A$ and determine $P^{-1}AP$
May
13
reviewed Approve Continuous probability distribution with no first moment but the characteristic function is differentiable
May
13
reviewed Approve Finding expected value of E(Y^2)
May
3
reviewed Approve Proving a circuit of a graph will have an edge in common with a cycle of the same graph.