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Aug
24
accepted Prove that the only numbers not expressible as a sum of consecutive positive integers takes the form $2^n$ for some $n \in \mathbb N$
Feb
10
accepted Buy more lottery tickets or more multipliers?
Dec
8
accepted Showing that $\sum_j e^{-jx}x^j$ converges uniformly
Dec
3
accepted How to prove Riemann integrable with partitions
Nov
18
accepted How to show that $\sum {2^j + j \over 3^j - j}$ converges
Nov
5
accepted Limit of metric of sequences
Sep
14
accepted Showing that $(a_n^2)$ is Cauchy implies that $(a_n)$ is Cauchy
Jun
13
accepted Binomial coefficients equal to a prime squared
Jun
3
accepted Number of possible pairs from $\{1,\dots, n\}$ with $i < j$
May
23
accepted How to find instances when $d(a,b) = p^2$ for $p$ a prime.
May
3
accepted Galois relations between subfields
May
3
accepted Standard representation of $\frak S_4$
May
3
accepted Weights versus roots
Apr
28
accepted How to compute the weights of $\Gamma_{3,1}$ the irrep of $\mathfrak{sl}_3\Bbb C$
Apr
27
accepted Computing eigenvalues for $\mathrm{Sym}^2(\mathrm{Sym}^3 V))$ for $V = \Bbb C^2$
Apr
8
accepted Factoring $x^{255} -1 $ over $\Bbb F_2$
Feb
28
accepted Connection between Galois trace and matrix trace
Feb
20
accepted Character of a permutation representation
Feb
20
accepted Basic identity of characters
Feb
17
accepted Subgroups of order $p$ and $p^{n-1}$ in a group of order $p^n$.