User Taras Banakh

2 votes

0 answers

81 views

A convex version of the small uncountable cardinal $\mathfrak b$

asked Nov 25, 2021 at 22:54

2 votes

0 answers

96 views

Codimension of analytic linear subspaces in Polish vector spaces

asked Dec 4, 2021 at 20:56

2 votes

0 answers

82 views

Is every first-countable symmetrizable space perfect?

asked Jun 1, 2022 at 18:49

2 votes

1 answer

67 views

$E$-separated semigroups

asked Feb 11, 2022 at 11:33

2 votes

1 answer

135 views

Compactifications with remainder $[0,\omega_1]$ and convergent sequences

asked Jan 30, 2020 at 17:31

2 votes

4 answers

404 views

The Boolean algebra generated by sets of prime divisors of the numbers $2^n-1$

asked Dec 6, 2019 at 21:06

2 votes

1 answer

231 views

A reference to the fact that a topologically transitive action of a group on a compact metrizable space has a dense orbit

asked Apr 4, 2020 at 5:56

2 votes

0 answers

42 views

Is each zero-dimensional cometrizable space zero-cometrizable?

asked Apr 5, 2020 at 16:31

2 votes

2 answers

705 views

In the von Neumann–Bernays–Gödel axiomatic system, the Axiom of Transposition can be simplified

asked Apr 8, 2020 at 18:10

2 votes

1 answer

140 views

What is the smallest cardinality of a base of an ultrafilter on $\omega$ related to an almost disjoint family of cardinality $\mathfrak c$?

asked Apr 16, 2020 at 6:05

2 votes

0 answers

101 views

A Baire space with meager projections

asked Jan 14, 2019 at 9:23

2 votes

0 answers

120 views

Two small uncountable cardinals related to Q-sets

asked Mar 29, 2019 at 11:06

2 votes

0 answers

116 views

Cardinal characteristics of the ideal of $\sigma$-continuity of the Pawlikowski function

asked Apr 2, 2019 at 15:54

2 votes

0 answers

81 views

Is there a normal separable sequential $\aleph$-space with uncountable extent?

asked Jan 29, 2019 at 15:56

2 votes

1 answer

140 views

Ends of G-spaces with action of a finitely generated group

asked Apr 9, 2019 at 9:30

2 votes

0 answers

122 views

A new topology on the dual of a locally convex space?

asked May 7, 2019 at 6:51

2 votes

3 answers

230 views

Every linear topological space embeds into the Tychonoff product of linear metric spaces

asked May 11, 2019 at 6:36

2 votes

2 answers

125 views

A contractible non-planar continuum

asked Jun 12, 2016 at 9:22

2 votes

1 answer

372 views

New class of finite groups?

asked Feb 23, 2017 at 8:57

2 votes

0 answers

64 views

On minimality of semitopological and quasitopological groups

asked Feb 10, 2018 at 17:47

2 votes

0 answers

66 views

Two questions about subsequential spaces with countable $k$-network

asked Feb 4, 2018 at 10:20

2 votes

0 answers

102 views

Is this concrete set generically Haar-null?

asked Jan 11, 2018 at 8:06

2 votes

0 answers

49 views

Does each weakly feathered topological group admit an injective homomorphism into a feathered topological group?

asked Jul 25, 2017 at 16:47

2 votes

0 answers

143 views

How to unify these three classes of topological spaces?

asked Aug 26, 2017 at 19:19

2 votes

0 answers

114 views

Sum-sets of sets of positive measure in the Hilbert cube

asked May 19, 2018 at 13:02

2 votes

1 answer

208 views

A possible characterization of regular cardinals?

asked Oct 21, 2018 at 15:55

2 votes

1 answer

351 views

The completeness of spaces of continuous functions with the compact-open topology

asked Sep 15, 2018 at 21:09

2 votes

1 answer

101 views

The complexity of sorting a list having one free cell

asked Nov 10, 2018 at 17:26

2 votes

0 answers

77 views

A possible characterization of stratifiable spaces?

asked Jan 6, 2019 at 8:27

1 vote

0 answers

60 views

On the defect of a flow network

asked Apr 21, 2018 at 7:50

Stack Exchange Network

351 Questions

A convex version of the small uncountable cardinal $\mathfrak b$

Codimension of analytic linear subspaces in Polish vector spaces

Is every first-countable symmetrizable space perfect?

$E$-separated semigroups

Compactifications with remainder $[0,\omega_1]$ and convergent sequences

The Boolean algebra generated by sets of prime divisors of the numbers $2^n-1$

A reference to the fact that a topologically transitive action of a group on a compact metrizable space has a dense orbit

Is each zero-dimensional cometrizable space zero-cometrizable?

In the von Neumann–Bernays–Gödel axiomatic system, the Axiom of Transposition can be simplified

What is the smallest cardinality of a base of an ultrafilter on $\omega$ related to an almost disjoint family of cardinality $\mathfrak c$?

A Baire space with meager projections

Two small uncountable cardinals related to Q-sets

Cardinal characteristics of the ideal of $\sigma$-continuity of the Pawlikowski function

Is there a normal separable sequential $\aleph$-space with uncountable extent?

Ends of G-spaces with action of a finitely generated group

A new topology on the dual of a locally convex space?

Every linear topological space embeds into the Tychonoff product of linear metric spaces

A contractible non-planar continuum

New class of finite groups?

On minimality of semitopological and quasitopological groups

Two questions about subsequential spaces with countable $k$-network

Is this concrete set generically Haar-null?

Does each weakly feathered topological group admit an injective homomorphism into a feathered topological group?

How to unify these three classes of topological spaces?

Sum-sets of sets of positive measure in the Hilbert cube

A possible characterization of regular cardinals?

The completeness of spaces of continuous functions with the compact-open topology

The complexity of sorting a list having one free cell

A possible characterization of stratifiable spaces?

On the defect of a flow network