User Dominic van der Zypen

3 votes

0 answers

210 views

Is it provable in $\mathsf{ZF}$ that there is a group structure on any set $X$? [duplicate]

asked Nov 28, 2014 at 11:54

3 votes

1 answer

198 views

Strongly asymmetric graphs

asked Nov 25, 2014 at 13:16

3 votes

0 answers

316 views

Order dimension vs topological dimension of a poset

asked Nov 4, 2014 at 8:16

3 votes

1 answer

289 views

Approximation of the form $\frac{1}{u}\pm\frac{1}{v}$

asked Sep 2, 2014 at 13:02

3 votes

1 answer

560 views

Two definitions of graph connectedness [closed]

asked May 14, 2012 at 7:01

3 votes

2 answers

252 views

Product of posets with Hausdorff interval topology

asked Jan 23, 2015 at 7:25

3 votes

2 answers

348 views

Is it consistent that $\frak{d} < 2^{\aleph_0}$?

asked Dec 22, 2014 at 13:34

3 votes

1 answer

299 views

Hadwiger's conjecture for coloring number instead of chromatic number

asked Feb 25, 2015 at 13:28

3 votes

1 answer

338 views

$\text{Cont}(X,X)$ and $\neg\mathsf{GCH}$

asked Feb 13, 2015 at 10:21

3 votes

3 answers

183 views

Linear intersection number and vertex covering number

asked Jan 28, 2015 at 12:06

3 votes

2 answers

233 views

${\frak b}$ and ${\frak d}$ defined with $\leq$ instead of $\leq^*$

asked May 18, 2015 at 7:00

3 votes

1 answer

242 views

Order dimension of $\omega^\omega/(fin)$

asked May 18, 2015 at 11:30

3 votes

2 answers

140 views

Minimal Hausdorffness reversed

asked Apr 28, 2015 at 7:07

3 votes

1 answer

255 views

$T_2$-space $X$ with $X\cong \text{Aut}(X)$

asked Jun 18, 2015 at 7:19

3 votes

1 answer

139 views

Infinite graphs with "similar" Hom-sets

asked May 29, 2015 at 10:48

3 votes

1 answer

115 views

Suprema of lower density of sums and products of sets with lower density 0

asked Jun 4, 2015 at 6:35

3 votes

1 answer

530 views

Uncountably many countable graphs with no homomorphism between them

asked Jun 2, 2015 at 7:45

3 votes

1 answer

121 views

Is $\{0,1\}^\omega$ the order-preserving image of $\{0,1\}^\omega$ modulo some finiteness relation?

asked Mar 21, 2015 at 16:27

3 votes

1 answer

409 views

Extremal, but not regular monomorphism

asked Apr 15, 2015 at 9:11

3 votes

1 answer

225 views

Is every frame monomorphism regular?

asked Apr 15, 2015 at 14:04

3 votes

1 answer

202 views

Is there a maximal connected Hausdorff space?

asked Mar 30, 2015 at 13:50

3 votes

1 answer

139 views

Infinite non-splittable graphs

asked Mar 31, 2015 at 7:22

3 votes

1 answer

135 views

Minimal $T_0$-spaces

asked Apr 6, 2015 at 13:25

3 votes

1 answer

163 views

Compactification of order-disconnected spaces

asked Oct 18, 2016 at 7:28

3 votes

1 answer

259 views

"Strongly" almost disjoint subsets

asked Nov 28, 2016 at 13:39

3 votes

1 answer

180 views

Exact and reachable cardinals

asked Nov 29, 2016 at 9:01

3 votes

2 answers

77 views

Quotients of $\text{Part}(X)$

asked Jan 16, 2017 at 7:45

3 votes

2 answers

558 views

"Universal" infinite graph (with respect to minors)

asked Apr 12, 2017 at 14:21

3 votes

1 answer

374 views

Domination number and chromatic number

asked Jan 19, 2017 at 13:09

3 votes

2 answers

128 views

Criticalness and Hamiltonicity

asked Feb 17, 2017 at 7:14

Stack Exchange Network

1,209 Questions

Is it provable in $\mathsf{ZF}$ that there is a group structure on any set $X$? [duplicate]

Strongly asymmetric graphs

Order dimension vs topological dimension of a poset

Approximation of the form $\frac{1}{u}\pm\frac{1}{v}$

Two definitions of graph connectedness [closed]

Product of posets with Hausdorff interval topology

Is it consistent that $\frak{d} < 2^{\aleph_0}$?

Hadwiger's conjecture for coloring number instead of chromatic number

$\text{Cont}(X,X)$ and $\neg\mathsf{GCH}$

Linear intersection number and vertex covering number

${\frak b}$ and ${\frak d}$ defined with $\leq$ instead of $\leq^*$

Order dimension of $\omega^\omega/(fin)$

Minimal Hausdorffness reversed

$T_2$-space $X$ with $X\cong \text{Aut}(X)$

Infinite graphs with "similar" Hom-sets

Suprema of lower density of sums and products of sets with lower density 0

Uncountably many countable graphs with no homomorphism between them

Is $\{0,1\}^\omega$ the order-preserving image of $\{0,1\}^\omega$ modulo some finiteness relation?

Extremal, but not regular monomorphism

Is every frame monomorphism regular?

Is there a maximal connected Hausdorff space?

Infinite non-splittable graphs

Minimal $T_0$-spaces

Compactification of order-disconnected spaces

"Strongly" almost disjoint subsets

Exact and reachable cardinals

Quotients of $\text{Part}(X)$

"Universal" infinite graph (with respect to minors)

Domination number and chromatic number

Criticalness and Hamiltonicity