User Dominic van der Zypen

5 votes

0 answers

180 views

Graph of number pairs summing to a square number

asked Feb 13, 2021 at 15:44

5 votes

1 answer

124 views

Minimal bridging sets in infinite connected graphs

asked Feb 25, 2021 at 11:05

5 votes

1 answer

266 views

Hamming distance between $a+b$ and $a \oplus b \oplus ((a \land b) \ll 1)$

asked Jun 1, 2021 at 19:38

5 votes

0 answers

134 views

Chains of length $2^\kappa$ in ${\cal P}(\kappa)$ [duplicate]

asked Jun 10, 2021 at 12:01

5 votes

0 answers

84 views

Recoverability of categorical products in graphs

asked Jul 4, 2022 at 9:32

5 votes

0 answers

126 views

Particles sent into the same direction with uniformly distributed speed

asked Sep 14, 2022 at 6:34

5 votes

1 answer

212 views

Is the partition tiling relation transitive?

asked Mar 12 at 14:06

5 votes

1 answer

200 views

Does every integer appear in the modular sum sequence?

asked Feb 9 at 9:07

5 votes

1 answer

158 views

(Weakly) minimal subcovers of linear covers

asked Apr 26 at 7:34

5 votes

1 answer

177 views

The equivalence of Dedekind-infinite and dually Dedekind-infinite as a weak form of (AC)

asked May 27 at 9:05

5 votes

1 answer

213 views

Relation between ultrafilters ${\scr U}$ and ${\scr U} \otimes {\scr U}$ [closed]

asked Mar 25, 2019 at 8:52

5 votes

2 answers

225 views

Size of sets in linear intersection structures with large coloring number

asked Apr 25, 2019 at 9:45

5 votes

2 answers

583 views

Box stacking problem

asked Apr 26, 2019 at 9:41

5 votes

3 answers

288 views

Disjunction number of a graph

asked May 12, 2019 at 14:10

5 votes

1 answer

415 views

Spreading $n$ points in $\{0,1\}^n$ as far as possible

asked Dec 31, 2018 at 0:11

5 votes

1 answer

342 views

On the "infinitely often in" relation between subsets of $\mathbb{N}$

asked Jan 8, 2019 at 15:33

5 votes

2 answers

261 views

Neighboring number of a permutation

asked Jan 9, 2019 at 10:25

5 votes

1 answer

213 views

Is the category of hypergraphs cartesian-closed?

asked Jan 26, 2019 at 15:18

5 votes

1 answer

456 views

Number defined by a recursive binary sequence

asked Oct 31, 2018 at 7:22

5 votes

1 answer

139 views

Is the Euclidean topology on $\mathbb{R}$ contained in a maximal connected topology?

asked Nov 3, 2018 at 14:36

5 votes

1 answer

372 views

Countable version of Erdös-Lovasz-Faber conjecture

asked Sep 5, 2018 at 6:00

5 votes

2 answers

910 views

Vertex cover number vs matching number

asked Sep 12, 2018 at 6:44

5 votes

1 answer

206 views

"König's theorem" for $T_2$-spaces?

asked Jul 30, 2018 at 6:58

5 votes

1 answer

284 views

Order convergence vs topological convergence in partially ordered sets

asked Jul 14, 2018 at 7:25

5 votes

0 answers

204 views

Universal group on $\kappa$ elements

asked Oct 8, 2019 at 6:51

5 votes

2 answers

484 views

Magic $\mathbb{Z}\times\mathbb{Z}$-square

asked Oct 17, 2019 at 7:43

5 votes

1 answer

82 views

Sizes of matchings and transversals in hypergraphs

asked Nov 26, 2019 at 9:05

5 votes

0 answers

166 views

Cardinals realizable by the chromatic number of a regular hypergraph

asked Jan 3, 2020 at 15:22

5 votes

1 answer

225 views

"Uniformly continuous" environment sum of a bijection $\varphi:\mathbb{Z}\times \mathbb{Z} \to \mathbb{Z}$

asked Jul 4, 2019 at 10:55

5 votes

3 answers

458 views

Arithmetically random bitstreams

asked Jun 7, 2019 at 7:47

Stack Exchange Network

1,209 Questions

Graph of number pairs summing to a square number

Minimal bridging sets in infinite connected graphs

Hamming distance between $a+b$ and $a \oplus b \oplus ((a \land b) \ll 1)$

Chains of length $2^\kappa$ in ${\cal P}(\kappa)$ [duplicate]

Recoverability of categorical products in graphs

Particles sent into the same direction with uniformly distributed speed

Is the partition tiling relation transitive?

Does every integer appear in the modular sum sequence?

(Weakly) minimal subcovers of linear covers

The equivalence of Dedekind-infinite and dually Dedekind-infinite as a weak form of (AC)

Relation between ultrafilters ${\scr U}$ and ${\scr U} \otimes {\scr U}$ [closed]

Size of sets in linear intersection structures with large coloring number

Box stacking problem

Disjunction number of a graph

Spreading $n$ points in $\{0,1\}^n$ as far as possible

On the "infinitely often in" relation between subsets of $\mathbb{N}$

Neighboring number of a permutation

Is the category of hypergraphs cartesian-closed?

Number defined by a recursive binary sequence

Is the Euclidean topology on $\mathbb{R}$ contained in a maximal connected topology?

Countable version of Erdös-Lovasz-Faber conjecture

Vertex cover number vs matching number

"König's theorem" for $T_2$-spaces?

Order convergence vs topological convergence in partially ordered sets

Universal group on $\kappa$ elements

Magic $\mathbb{Z}\times\mathbb{Z}$-square

Sizes of matchings and transversals in hypergraphs

Cardinals realizable by the chromatic number of a regular hypergraph

"Uniformly continuous" environment sum of a bijection $\varphi:\mathbb{Z}\times \mathbb{Z} \to \mathbb{Z}$

Arithmetically random bitstreams