Question

Does introducing new open sets in topology improves it's "T"-axiom properties?

score 82 · Answer 1 · 2017-06-16 19:57:26

82

Views

Does introducing new open sets in topology improves it's "T"-axiom properties?

Published on 16 Jun 2017 - 19:57

score 370 · Answer 2 · 2017-06-17 15:19:35

370

Views

Subspace homeomorphic to Initial/Final segment topology.

Published on 17 Jun 2017 - 15:19

score 371 · Answer 3 · 2017-06-21 14:52:52

371

Views

Incorrect proof that normality is hereditary

Published on 21 Jun 2017 - 14:52

score 1.1k · Answer 4 · 2017-06-22 19:22:06

1.1k

Views

Every Topological Vector Space is Regular

Published on 22 Jun 2017 - 19:22

score 583 · Answer 5 · 2017-07-09 18:19:54

583

Views

Continuous functions in normal spaces (application of Urysohn's Lemma)

Published on 09 Jul 2017 - 18:19

score 825 · Answer 6 · 2017-07-13 17:15:43

825

Views

Why say "completely regular T1" when completely regular T0 implies T1?

Published on 13 Jul 2017 - 17:15

score 156 · Answer 7 · 2017-07-13 18:43:06

156

Views

Exercise about separation axioms and compactness

Published on 13 Jul 2017 - 18:43

score 721 · Answer 8 · 2017-07-14 13:05:38

721

Views

Covering space of a regular space is regular

Published on 14 Jul 2017 - 13:05

score 230 · Answer 9 · 2026-02-23 13:47:41

230

Views

linear ordered topological spaces are $T_4$- guided proof.

Published on 23 Feb 2026 - 13:47

score 58 · Answer 10 · 2017-07-24 07:33:15

58

Views

Existence of collection of neighbourhoods of a point in a locally compact Hausdorff topological space

Published on 24 Jul 2017 - 7:33

score 39 · Answer 11 · 2017-07-26 00:15:30

39

Views

I want to see that $G(~)$ is closed in $X \times X$

Published on 26 Jul 2017 - 0:15

score 203 · Answer 12 · 2017-07-26 01:06:05

203

Views

Example of a proper map $f: X\to Y$ such that $Y$ is normal, but $X$ is not

Published on 26 Jul 2017 - 1:06

score 121 · Answer 13 · 2017-07-26 17:48:36

121

Views

An equivalent condition to normality of topological spaces

Published on 26 Jul 2017 - 17:48

score 351 · Answer 14 · 2026-03-27 16:17:34

351

Views

Left adjoints to some inclusions of categories of topological spaces

Published on 27 Mar 2026 - 16:17

score 73 · Answer 15 · 2017-07-26 21:59:02

73

Views

prove that $X$ is normal if and only if exist $f_{1},\dots, f_{n}$ such that $\displaystyle \sum f_{i} (x) = 1$

Published on 26 Jul 2017 - 21:59

List Question

Does introducing new open sets in topology improves it's "T"-axiom properties?

Subspace homeomorphic to Initial/Final segment topology.

Incorrect proof that normality is hereditary

Every Topological Vector Space is Regular

Continuous functions in normal spaces (application of Urysohn's Lemma)

Why say "completely regular T1" when completely regular T0 implies T1?

Exercise about separation axioms and compactness

Covering space of a regular space is regular

linear ordered topological spaces are $T_4$- guided proof.

Existence of collection of neighbourhoods of a point in a locally compact Hausdorff topological space

I want to see that $G(~)$ is closed in $X \times X$

Example of a proper map $f: X\to Y$ such that $Y$ is normal, but $X$ is not

An equivalent condition to normality of topological spaces

Left adjoints to some inclusions of categories of topological spaces

prove that $X$ is normal if and only if exist $f_{1},\dots, f_{n}$ such that $\displaystyle \sum f_{i} (x) = 1$

Trending Questions

Popular # Hahtags

Popular Questions