Andrey Rekalo
Reputation
5,067
Top tag
Next privilege 10,000 Rep.
Access moderator tools
 Sep 11 reviewed Close Sum of number of factors of first N numbers Sep 11 reviewed Leave Open Prove the following set is compact Sep 11 reviewed Leave Open From a triangular matrix to a symmetric square matrix Sep 11 reviewed Leave Open Construct a homomorphism Sep 11 reviewed Leave Open The structure of a group of order 443520 Sep 11 reviewed Approve Assist me to obtain an equation please? Sep 11 reviewed Approve Minimum number of money to make each element in list greater than or equal to 0? Sep 11 reviewed Approve Precise definition of isotropic curve of a conformal structures on a manifold? Sep 11 reviewed Approve Linear Algebra- Matrix derivative Sep 11 reviewed No Action Needed Entropy of geometric random variable? Sep 11 reviewed Approve Infinite sets and their Cardinality Sep 11 reviewed Leave Closed Truth Table for If P then Q Sep 11 reviewed Leave Closed Proving : Every infinite subset of countable set is countable Sep 11 reviewed Leave Closed Why is the complex number $z=a+bi$ equivalent to the matrix form $\left(\begin{smallmatrix}a &-b\\b&a\end{smallmatrix}\right)$ Sep 11 reviewed Leave Closed Prove by induction that $n!>2^n$ Sep 11 reviewed Leave Closed Do orders uniquely describe a group? Sep 11 reviewed Leave Closed How to prove by induction that $\sum^n_{i=1}2^{i-1}=2^n-1$? Sep 11 reviewed Leave Closed If $L\rightarrow M\rightarrow N$ is a short exact sequence and L and N are finite over A, then so is M Sep 11 reviewed Leave Closed 1 + (1/2) + … + (1/n) ; where n>1 Sep 11 reviewed Leave Closed Finding all groups with $\text{Aut}(G)=\{1\}$