john mangual
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 1d asked Kloosterman Sums and Lattice Hyperbolas 2d answered Proving that $e^{\pi}-{\pi}^e\lt 1$ without using a calculator Aug 26 answered LCM of randomly selected integers Aug 26 asked Large regions of the plane $(x,y) \in \mathbb{Z}^2$ with no relatively prime points: $\mathrm{gcd}(x,y) > 1$ Aug 25 answered Groups of order $8n$ have at least five distinct conjugacy classes Aug 23 answered Intuition behind the construction of Young Symmetrizer Aug 20 answered Prove that there exists infinitely many positive integers $n$ such that $\sin^2{(na)}+\sin^2{(nb)}\le \frac{2\pi^2}{n}$ Aug 19 asked Prove or disprove: $\sum_{b \vee d = x} \tau(b) \tau(d) = \tau(x)^3$ Aug 16 asked Area of the lattice generated from $(n, n\sqrt{2} \mod 1)$ Aug 16 answered Proof of $\sum_{d|n} {\tau}^3(d)=\left(\sum_{d|n}{\tau}(d)\right)^2$ (not standard proof) Aug 15 answered Moebius band not homeomorphic to Cylinder. Aug 13 asked Dual Cone Construction $\{z \; | \;z \perp v \text{ for some } v \in \Lambda \}$ Aug 11 answered Number of irreducible quadratic polynomials over a finite field Aug 9 answered Explanation of a method to compute $\sum_{k \le n} k^2$ Jul 30 asked Why is $\zeta(1+it) \neq 0$ equivalent to the prime number theorem? Jul 30 asked Computing the intersection of two arithmetic sequences $(a\mathbb{Z} + b) \cap (c \mathbb{Z} + d)$ Jul 29 asked Can the numbers $2^m 3^n$ have an infinitely long arithmetic sequence? Jul 25 asked Can $O(\sqrt{x})$ be considered $o(x)$? Jul 19 asked Product of complex numbers $m+in$ with $0 < m,n \leq N$ Jul 18 answered determining which cyclotomic polynomial is $x^8 -x^4+1$