Matthew Pressland
Reputation
9,604
Top tag
Next privilege 10,000 Rep.
Access moderator tools
 Oct 9 reviewed No Action Needed If p is prime and p|$a^n$ prove that $p^n|a^n$ Oct 8 reviewed Looks OK Integer values of $a$ for which the expression $(x+a)(2013+x)+1$ is a Perfect Square Oct 8 reviewed Reviewed Multiplication of negative numbers is always positive Oct 8 reviewed No Action Needed Framed Cobordism Classes of links in $\mathbb R^3$ Oct 7 reviewed Close Finding a certain subsemigroup of $(\mathbb R,+)$ Oct 7 reviewed Close Solve for a and b? $a = \frac 1{20}(b^2 + 2b + 25)$ and $-a-1=-b$ Oct 2 reviewed Leave Open How to prove that $\frac{\eta^{14}(q^4)}{\eta^{4}(q^8)}=4\eta^4(q^2)\eta^2(q^4)\eta^4(q^8)+\eta^4(q)\eta^2(q^2)\eta^4(q^4)$? Sep 28 reviewed Reviewed If two norms are equivalent on a dense subspace of a normed space, are they equivalent? Sep 28 reviewed No Action Needed How to understand the solution to an exponential variable equation? Sep 28 reviewed No Action Needed Choosing the best estimator Sep 28 reviewed Edit Inequality Proof, need help simplifying Sep 28 revised Inequality Proof, need help simplifying improved formatting Sep 28 reviewed Approve Prove this statement… Sep 28 reviewed Leave Open What are Aleph numbers intuitively? Sep 27 reviewed Leave Open Categories, whose objects are morphisms Sep 27 reviewed Close Example of a group in which the equation $x^2=e$ has more than two solutions Sep 27 comment How would one define a “manifold” object in prose writing? In layman's terms, a manifold (in the mathematical sense, but Thomas is correct that there is another) is an object which, when looked at closely, appears to be a "flat" Euclidean space (think of looking at a sphere closely and percieving a flat plane), but may have interesting global structure (i.e., the sphere isn't actually a flat plane). The dimension is a bit of a red herring - in abstract mathematics (and indeed in a huge number of applications) there isn't anything special about dimensions smaller than 4. Sep 27 reviewed Reject Finding the inverse of a rational exponential function Sep 27 reviewed Edit Largest number on multiplying with itself gives the same number as last digits of the product Sep 27 revised Largest number on multiplying with itself gives the same number as last digits of the product latex formatting, making it easier to understand