User Dominic van der Zypen

1 vote

1 answer

83 views

Choice sets in covers with small intersections

asked Nov 20, 2017 at 10:46

1 vote

1 answer

82 views

Matchings in graphs with infinite chromatic number

asked Nov 21, 2017 at 14:35

1 vote

1 answer

88 views

Sum-coloring a tournament

asked Jan 1, 2018 at 19:38

1 vote

2 answers

175 views

Non-homogeneous space $X$ such that $X\cong X\setminus \{x\}$ for all $x\in X$

asked Nov 9, 2017 at 11:38

1 vote

1 answer

169 views

Choice sets in "thick" sets of sets

asked Nov 8, 2017 at 7:07

1 vote

2 answers

325 views

Maximum intersecting set families of $\{1,\ldots,n\}$

asked May 2, 2018 at 8:16

1 vote

1 answer

217 views

Connected Hausdorff spaces with different cardinalities of open sets

asked May 10, 2018 at 7:53

1 vote

2 answers

56 views

Achieving every possible ranking by rearranging weights

asked Jun 5, 2018 at 8:16

1 vote

1 answer

79 views

Strong and weak chromatic number of infinite hypergraphs of finite rank

asked Apr 4, 2018 at 8:11

1 vote

1 answer

84 views

Strong and weak chromatic number of infinite bounded hypergraphs

asked Apr 5, 2018 at 7:56

1 vote

1 answer

94 views

Connected $T_2$-space such that not all closed subsets are fibers

asked Mar 9, 2018 at 10:14

1 vote

0 answers

113 views

Continuous functions "sharing" a point

asked Feb 21, 2018 at 12:56

1 vote

2 answers

150 views

Subgroups of $(\mathbb{Z}/n\mathbb{Z})^*$ [closed]

asked Jan 31, 2018 at 16:53

1 vote

0 answers

143 views

Tiling a rectangle with squares

asked Jun 29, 2022 at 8:19

1 vote

2 answers

142 views

Embedding $^\omega\omega$ and $S_\omega$ with lexicographic order into $\mathbb{R}$

asked Jun 21, 2022 at 17:49

1 vote

1 answer

126 views

Optimal partitions amongst a given set of partitions

asked Jun 15, 2022 at 10:58

1 vote

1 answer

228 views

(Maximal) almost disjoint families of true cardinality ${\frak c}$

asked May 25, 2022 at 20:11

1 vote

1 answer

81 views

Edge sets on $\omega$ maximal with respect to chromatic number

asked Apr 15, 2022 at 19:47

1 vote

1 answer

170 views

"Lamp-switch set-up number" of $n$ [closed]

asked May 14, 2022 at 16:39

1 vote

1 answer

92 views

Hypergraphs with finite matching / covering balance

asked May 28, 2022 at 10:12

1 vote

1 answer

81 views

Cycling through $\{0,1\}^n$ by shifting and applying a $n$-ary function

asked Feb 21, 2022 at 10:37

1 vote

1 answer

56 views

Maximal matchable set in hypergraph with finite edges

asked May 3, 2022 at 9:11

1 vote

0 answers

54 views

Weak Power Hypothesis in ${\sf ZFC}$ [duplicate]

asked Mar 28, 2022 at 9:17

1 vote

1 answer

181 views

Discrepancy number of a graph

asked Oct 14, 2021 at 11:32

1 vote

1 answer

120 views

Non-summable subsets of $[\omega]^{<\omega}$

asked Oct 25, 2021 at 22:39

1 vote

1 answer

97 views

Self-dual hypergraph on $\omega$

asked Sep 7, 2021 at 19:51

1 vote

1 answer

208 views

Chromatic number of duals of uniform hypergraphs with large edges

asked Dec 21, 2021 at 10:14

1 vote

1 answer

342 views

Does normalcy in one base imply normalcy in any other base?

asked Jan 21, 2022 at 9:43

1 vote

0 answers

92 views

Connected posets $P\not \cong Q$ such that $\text{Hom}(P,P) \cong \text{Hom}(Q,Q)$

asked Jan 24, 2022 at 8:31

1 vote

1 answer

137 views

Maximum number of distinct $n$-runs that binary sequence of length $2^n$ can have

asked Jan 13, 2022 at 12:46

Stack Exchange Network

1,210 Questions

Choice sets in covers with small intersections

Matchings in graphs with infinite chromatic number

Sum-coloring a tournament

Non-homogeneous space $X$ such that $X\cong X\setminus \{x\}$ for all $x\in X$

Choice sets in "thick" sets of sets

Maximum intersecting set families of $\{1,\ldots,n\}$

Connected Hausdorff spaces with different cardinalities of open sets

Achieving every possible ranking by rearranging weights

Strong and weak chromatic number of infinite hypergraphs of finite rank

Strong and weak chromatic number of infinite bounded hypergraphs

Connected $T_2$-space such that not all closed subsets are fibers

Continuous functions "sharing" a point

Subgroups of $(\mathbb{Z}/n\mathbb{Z})^*$ [closed]

Tiling a rectangle with squares

Embedding $^\omega\omega$ and $S_\omega$ with lexicographic order into $\mathbb{R}$

Optimal partitions amongst a given set of partitions

(Maximal) almost disjoint families of true cardinality ${\frak c}$

Edge sets on $\omega$ maximal with respect to chromatic number

"Lamp-switch set-up number" of $n$ [closed]

Hypergraphs with finite matching / covering balance

Cycling through $\{0,1\}^n$ by shifting and applying a $n$-ary function

Maximal matchable set in hypergraph with finite edges

Weak Power Hypothesis in ${\sf ZFC}$ [duplicate]

Discrepancy number of a graph

Non-summable subsets of $[\omega]^{<\omega}$

Self-dual hypergraph on $\omega$

Chromatic number of duals of uniform hypergraphs with large edges

Does normalcy in one base imply normalcy in any other base?

Connected posets $P\not \cong Q$ such that $\text{Hom}(P,P) \cong \text{Hom}(Q,Q)$

Maximum number of distinct $n$-runs that binary sequence of length $2^n$ can have