Connor Harris
  • Member for 8 years, 3 months
  • Last seen more than a month ago
1 answers
10 votes
244 views
2 bookmarks
Set of elements of degree $2^n$ over a base field is itself a field
1 answers
9 votes
149 views
3 bookmarks
Closed form for $\sum_{k=0}^\infty \frac{x^k}{(k+1)^4 k!}$
2 answers
8 votes
143 views
1 bookmarks
Does $\lim_{x \to \infty} f(x) = 0$ imply $\int_\delta^\infty \frac{f(x)}{x}\, dx$ converges?
1 answers
7 votes
1k views
2 bookmarks
Fibration over contractible space is homotopic to a fiber
1 answers
6 votes
120 views
Basis for $\mathbb{R}^\mathbb{N}$ implies axiom of choice?
1 answers
6 votes
598 views
1 bookmarks
Proof of $\Gamma(z) e^{i \pi z/2} = \int_0^\infty t^{z-1} e^{it}\, dt$
2 answers
5 votes
401 views
Uniqueness in Bernstein's theorem of calculus of variations
1 answers
5 votes
788 views
Example of element of double dual that is not an evaluation map
1 answers
4 votes
106 views
2 bookmarks
Algebraic proof of finiteness of von Dyck groups?
0 answers
4 votes
64 views
1 bookmarks
Largest set of equidistant points in $\mathbb{R}^n$ under non-Euclidean norms
0 answers
4 votes
176 views
1 bookmarks
Closed form for $\ln(2\ln(3\ln(4\ln(5\ln(6…)))))$
0 answers
4 votes
86 views
1 bookmarks
When is a product of sums of roots of unity an integer?
1 answers
4 votes
625 views
1 bookmarks
Factoring $x^{16}-x$ over $\mathbb{F}_8$
1 answers
3 votes
2k views
When can Jordan's lemma be applied to contours less than a complete semicircle?
0 answers
3 votes
86 views
Are there continuous functions $f: \mathbb{R} \to \mathbb{R}$ with irrational period such that $|\{f(n) | n \in \mathbb{N} \}| < \infty$?
2 answers
2 votes
187 views
Determining, without recourse to complex analysis, which functions $f: \mathbf{R} \to \mathbf{R}$ converge to their Taylor series
0 answers
1 votes
20 views
Best possible worst-case performance in a bit-string guessing game?
2 answers
1 votes
85 views
Non-calculus ways to get higher-order terms in $(1 + k/n)^n$?
1 answers
1 votes
154 views
1 bookmarks
How many powers of $2$ have only $0$ or powers of $2$ as digits?
2 answers
1 votes
368 views
Let $M$ be a finitely generated $R$-module and $I \subset R$ an ideal such that $IM = M$. If $M'$ is a particular submodule, does $IM '= M'$?
2 answers
1 votes
240 views
1 bookmarks
Proof of an infinite sum involving cosines
1 answers
1 votes
221 views
Find a meromorphic function with given principal parts
1 answers
0 votes
40 views
Distribution of residues of integers coprime to $n$, modulo another integer also coprime to $n$
1 answers
0 votes
84 views
Maximum order of a polynomial permutation of a finite ring
1 answers
0 votes
173 views
Help understanding a passage in Gelfand and Fomin's Calculus of Variations
1 answers
0 votes
47 views
Conditions on subgroups $H, K$ of an abelian group $G$ such that $G/K \cong H/(H \cap K)$