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Jan
20
reviewed Close How do i show that:$\prod\frac{p^2+1}{p^2-1}=\frac{5}{2}$ without using properties of Riemann zeta function?
Jan
15
comment Characters of permutation groups
@GjergjiZaimi: You're probably right. I just didn't know what to call it! But Polya + cycle index covers the bases.
Jan
15
answered Characters of permutation groups
Jan
13
reviewed Leave Open Greatly expanded new edition of a Bourbaki chapter on algebra?
Jan
7
answered Improvement of a bound on divisor distributions from “Divisors” (Hall and Tenenbaum)?
Jan
6
awarded  Nice Answer
Jan
6
reviewed Looks OK Minimal number of vertices in a graph with special Hadwiger partitions
Jan
6
reviewed Close Behavior of “integer complex number” on computer
Jan
6
revised On (a generalization of) the Gauss Circle Problem
added 1048 characters in body
Jan
5
comment Does the antidiagonal in this square matrix always contain a prime?
See mathoverflow.net/questions/217956/… which summarizes what is known.
Jan
5
answered Estimating size of greatest prime divisor of a sequence of integers
Jan
3
reviewed No Action Needed Abelian extremely amenable group?
Jan
3
reviewed No Action Needed Why Householder reflection is better than Givens rotation in dense linear algebra?
Jan
3
reviewed Leave Open Is $n=6$ the only integer satisfies ${\sigma}_x(n) \equiv 0\bmod{n}$ for every odd integer $x > 0$ and $2 (\bmod n)$ if $x$ is even integer?
Jan
1
reviewed Leave Open How can you compute the maximum volume of an envelope(used to enclose a letter)?
Dec
29
answered On (a generalization of) the Gauss Circle Problem
Dec
29
comment A combinatorial problem
The question at present reads fine to me, but note that this is your fourth attempt at formulating this (in under one hour), and perhaps you could have put in the effort to formulate the question carefully before posting. I can't know of course, but that may have influenced the down vote/close vote.
Dec
29
reviewed Leave Open A combinatorial problem
Dec
29
comment Asymptotic growth rate of coefficients of generating function
Just because the radius of convergence is $\rho$ does not mean that $S(z)$ goes to infinity as $z\to \rho$. For example, consider $\sum_{n=1}^{\infty} z^n/n^2$.
Dec
27
comment Asymptotic growth rate of coefficients of generating function
Since only odd powers appear here, you probably also want to add in a contribution of the form $(-\rho)^{-n}$ etc.