User Dominic van der Zypen

1 vote

0 answers

128 views

Contracting 2 edges

asked Aug 19, 2016 at 7:55

1 vote

1 answer

108 views

Does the lattice of coverings embed in the lattice of partitions?

asked Sep 22, 2016 at 13:10

1 vote

1 answer

176 views

Interval topology on complete Boolean algebras

asked Oct 6, 2016 at 19:14

1 vote

1 answer

1k views

Intermediate value property and continuity

asked Aug 10, 2016 at 8:47

1 vote

2 answers

197 views

On some examples of critical families

asked Jul 18, 2016 at 7:16

1 vote

0 answers

48 views

Infinite graphs with number of common neighbors given for each pair of vertices

asked Apr 11, 2016 at 12:57

1 vote

1 answer

120 views

Lower neighbors in the lattice of topologies

asked Apr 22, 2016 at 6:52

1 vote

1 answer

196 views

Infinite graph with degrees given

asked Feb 26, 2016 at 10:40

1 vote

1 answer

157 views

Intersection number of the tensor product of graphs

asked Mar 10, 2016 at 10:28

1 vote

1 answer

161 views

"Reduce-by-1"-isomorphic graphs

asked Mar 14, 2016 at 8:13

1 vote

1 answer

258 views

Do the sequences with divergent associated $\zeta$-function form a vector space?

asked Nov 22, 2014 at 14:19

1 vote

1 answer

284 views

Hausdorff spaces such that every subset is a retract

asked Dec 9, 2014 at 15:16

1 vote

1 answer

163 views

Number of points in an intersecting linear hypergraph

asked Sep 8, 2014 at 6:51

1 vote

2 answers

394 views

Non-isomorphic groups such that there are epis from one to another [closed]

asked Oct 9, 2014 at 13:48

1 vote

1 answer

424 views

Edge density of triangle-free graphs

asked Dec 12, 2014 at 10:36

1 vote

1 answer

108 views

Universal and left-factoring order-preserving maps

asked Dec 15, 2014 at 9:49

1 vote

1 answer

120 views

Minimality condition in a certain class of hypergraphs

asked Jan 9, 2015 at 8:34

1 vote

1 answer

186 views

Reconstructibility of a group from subgroups

asked Jan 5, 2015 at 10:04

1 vote

2 answers

158 views

Completion of a single totally ordered down-set

asked Mar 2, 2015 at 7:54

1 vote

1 answer

233 views

Generalization of Hamiltonian cycle

asked Mar 11, 2015 at 8:58

1 vote

1 answer

337 views

Powers modulo a fixed integer

asked May 4, 2015 at 14:14

1 vote

1 answer

1k views

Sums of two squares: positive lower density? [duplicate]

asked May 6, 2015 at 12:00

1 vote

0 answers

126 views

Partition refinement of a clopen covering in $\Box (\omega+1)^\omega$

asked May 11, 2015 at 6:31

1 vote

1 answer

318 views

Positive rational numbers as sum of unit fractions [duplicate]

asked May 20, 2015 at 13:57

1 vote

0 answers

130 views

Is $\mathcal{P}(\omega)/(fin)$ with the interval topology path-connected?

asked Mar 25, 2015 at 9:44

1 vote

1 answer

232 views

Is the union of strongly base-orderable matroids strongly base-orderable?

asked Mar 26, 2015 at 7:01

1 vote

1 answer

214 views

Surjective marriages

asked Mar 17, 2015 at 10:54

1 vote

1 answer

497 views

Relationship of clique, independence, and chromatic numbers

asked Mar 3, 2015 at 11:28

1 vote

2 answers

304 views

Two notions of zero-dimensionality for topological spaces

asked Apr 21, 2015 at 7:03

1 vote

2 answers

208 views

Connected, maximal compact, but not $T_2$

asked Apr 17, 2015 at 6:43

Stack Exchange Network

1,209 Questions

Contracting 2 edges

Does the lattice of coverings embed in the lattice of partitions?

Interval topology on complete Boolean algebras

Intermediate value property and continuity

On some examples of critical families

Infinite graphs with number of common neighbors given for each pair of vertices

Lower neighbors in the lattice of topologies

Infinite graph with degrees given

Intersection number of the tensor product of graphs

"Reduce-by-1"-isomorphic graphs

Do the sequences with divergent associated $\zeta$-function form a vector space?

Hausdorff spaces such that every subset is a retract

Number of points in an intersecting linear hypergraph

Non-isomorphic groups such that there are epis from one to another [closed]

Edge density of triangle-free graphs

Universal and left-factoring order-preserving maps

Minimality condition in a certain class of hypergraphs

Reconstructibility of a group from subgroups

Completion of a single totally ordered down-set

Generalization of Hamiltonian cycle

Powers modulo a fixed integer

Sums of two squares: positive lower density? [duplicate]

Partition refinement of a clopen covering in $\Box (\omega+1)^\omega$

Positive rational numbers as sum of unit fractions [duplicate]

Is $\mathcal{P}(\omega)/(fin)$ with the interval topology path-connected?

Is the union of strongly base-orderable matroids strongly base-orderable?

Surjective marriages

Relationship of clique, independence, and chromatic numbers

Two notions of zero-dimensionality for topological spaces

Connected, maximal compact, but not $T_2$