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Zuy
  • Member for 4 years, 4 months
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7 votes
2 answers
934 views

Max. distance of 2D random walk

6 votes
1 answer
372 views

Proper map of Riemann surfaces

5 votes
1 answer
776 views

Let $R$ be a closed equivalence relation on a Hausdorff space $X$. Show that $X/R$ is Hausdorff. [duplicate]

5 votes
1 answer
1k views

Path components of Topologist's Sine Curve

5 votes
1 answer
181 views

Maximal ideal with given condition

5 votes
0 answers
167 views

The $n\times n$ matrices $A^n, A^{n-1},\dots,\mathrm{id}_n$ are linearly dependent

4 votes
1 answer
76 views

Unitary group and subgroup are non-isomorphic

4 votes
3 answers
196 views

$\mathbb N$ is a field

4 votes
0 answers
75 views

Proving non-existence of polynomial

4 votes
1 answer
99 views

A reformulation of Lindemann-Weierstrass Theorem

3 votes
0 answers
140 views

Generators of lattice

3 votes
1 answer
81 views

Conjecture on bounding probabilities

3 votes
0 answers
53 views

A cousin of $\sum k\binom nk$ [duplicate]

3 votes
1 answer
73 views

Some hypergeometric transformation

3 votes
2 answers
74 views

On the number of ways to get a sum with given parity

3 votes
1 answer
84 views

Sufficient criterion for convergence of series

2 votes
1 answer
116 views

Disjointness in proof of Tarski's Theorem that $|X\times X|=|X|$ for all infinite sets implies Choice

2 votes
2 answers
72 views

Proving compactness in $\mathsf{ZF}$

2 votes
1 answer
325 views

Contractible implies simply connected

2 votes
2 answers
107 views

Infimum of partitions-set

2 votes
3 answers
496 views

Logarithm of $I_n-N$ for $N$ nilpotent

2 votes
1 answer
73 views

Finding integer coprime to $x$ of given form

2 votes
1 answer
77 views

Finding integer coprime to a given number

2 votes
2 answers
153 views

An impossible congruence

2 votes
1 answer
134 views

Placing points on sphere as far apart as possible

2 votes
1 answer
235 views

Regular local rings of Krull dimension $1$ are integral domains

2 votes
0 answers
33 views

Does $(x)\cdot \bigcap_{n\geq 0}(x^n)= \bigcap_{n\geq 0}(x^n)$?

2 votes
1 answer
51 views

Complex normal variable vs. real normal variable

2 votes
1 answer
70 views

Ring isomorphism via Hensel lifting

2 votes
0 answers
54 views

Uniqueness of Radon point