Question

Examples of sequential compact but not compact spaces that do not use ordinals.

score 124 · Answer 1 · 2026-03-28 23:58:43

124

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Examples of sequential compact but not compact spaces that do not use ordinals.

Published on 28 Mar 2026 - 23:58

score 79 · Answer 2 · 2026-03-25 17:24:48

79

Views

What is application of following exercise?

Published on 25 Mar 2026 - 17:24

score 109 · Answer 3 · 2026-03-25 12:27:06

109

Views

Independence of the uniform metric from the compatible metric for the codomain

Published on 25 Mar 2026 - 12:27

score 196 · Answer 4 · 2026-03-26 21:08:57

196

Views

Equivalent Definitions of Compactly Supported Forms in The Vertical Direction

Published on 26 Mar 2026 - 21:08

score 1.1k · Answer 5 · 2019-04-06 04:49:19

1.1k

Views

Prove that the one point compactification of $X$ \ $E$ is homeomorphic to $X/ \sim$

Published on 06 Apr 2019 - 4:49

score 1k · Answer 6 · 2026-03-26 04:53:30

1k

Views

Example 4, Sec. 29, in Munkres' TOPOLOGY, 2nd ed: How is the one-point compactification of the real line homeomorphic with the circle?

Published on 26 Mar 2026 - 4:53

score 35 · Answer 7 · 2019-04-07 15:40:02

35

Views

$d(x,E^c) > \frac{1}{j}$ is compact if $E$ is open.

Published on 07 Apr 2019 - 15:40

score 397 · Answer 8 · 2019-04-08 01:24:56

397

Views

Showing the closure of a compact subset need not be compact

Published on 08 Apr 2019 - 1:24

score 70 · Answer 9 · 2026-03-25 06:24:52

70

Views

If $\pi(x,y)=x$ and $F$ is closed, $\pi(F)$ is closed.

Published on 25 Mar 2026 - 6:24

score 328 · Answer 10 · 2026-03-26 10:58:32

328

Views

Regarding sequence of positive Harmonic functions

Published on 26 Mar 2026 - 10:58

score 712 · Answer 11 · 2019-04-08 11:37:13

712

Views

intersection of decreasing compact sets is again compact

Published on 08 Apr 2019 - 11:37

score 51 · Answer 12 · 2026-03-25 14:34:01

51

Views

Compact sets through topologies over a set

Published on 25 Mar 2026 - 14:34

score 40 · Answer 13 · 2026-03-25 05:05:40

40

Views

Meaning of Compactness

Published on 25 Mar 2026 - 5:05

score 136 · Answer 14 · 2026-03-29 21:54:00

136

Views

Relation between strong convergence in $L^{p}$ and weak convergence in $H_{0}^{1}(\Omega)$

Published on 29 Mar 2026 - 21:54

score 58 · Answer 15 · 2019-04-11 11:59:13

58

Views

A lemma used to prove the classification of closed 1-manifolds

Published on 11 Apr 2019 - 11:59

List Question

Examples of sequential compact but not compact spaces that do not use ordinals.

What is application of following exercise?

Independence of the uniform metric from the compatible metric for the codomain

Equivalent Definitions of Compactly Supported Forms in The Vertical Direction

Prove that the one point compactification of $X$ \ $E$ is homeomorphic to $X/ \sim$

Example 4, Sec. 29, in Munkres' TOPOLOGY, 2nd ed: How is the one-point compactification of the real line homeomorphic with the circle?

$d(x,E^c) > \frac{1}{j}$ is compact if $E$ is open.

Showing the closure of a compact subset need not be compact

If $\pi(x,y)=x$ and $F$ is closed, $\pi(F)$ is closed.

Regarding sequence of positive Harmonic functions

intersection of decreasing compact sets is again compact

Compact sets through topologies over a set

Meaning of Compactness

Relation between strong convergence in $L^{p}$ and weak convergence in $H_{0}^{1}(\Omega)$

A lemma used to prove the classification of closed 1-manifolds

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