Question

What is the meaning of this symbol ? $a)$ $C_b^0(\mathbb{R})$ $b)$ $C_c^{\infty}(\mathbb{R})$.

score 108 · Answer 1 · 2026-04-15 22:48:42

108

Views

What is the meaning of this symbol ? $a)$ $C_b^0(\mathbb{R})$ $b)$ $C_c^{\infty}(\mathbb{R})$.

Published on 15 Apr 2026 - 22:48

score 264 · Answer 2 · 2026-04-15 07:27:27

264

Views

Operations on pullbacks of vector bundles.

Published on 15 Apr 2026 - 7:27

score 77 · Answer 3 · 2026-04-10 15:05:23

77

Views

Purpose of Metrizability

Published on 10 Apr 2026 - 15:05

score 431 · Answer 4 · 2026-04-14 01:02:21

431

Views

Showing that half-circle is Borel

Published on 14 Apr 2026 - 1:02

score 74 · Answer 5 · 2026-04-14 14:34:26

74

Views

Topology topics for Profinite Groups

Published on 14 Apr 2026 - 14:34

score 197 · Answer 6 · 2026-04-12 02:28:14

197

Views

The space obtained by attaching a subspace of a topological space to itself.

Published on 12 Apr 2026 - 2:28

score 927 · Answer 7 · 2026-04-17 03:30:17

927

Views

Let X be a set with subsets A and B. Prove X\(A\B) = B U (X\A)

Published on 17 Apr 2026 - 3:30

score 122 · Answer 8 · 2026-04-16 08:34:38

122

Views

prove that $A\cup B$ is connected

Published on 16 Apr 2026 - 8:34

score 2.1k · Answer 9 · 2026-04-14 00:17:56

2.1k

Views

If two spaces are homeomorphic and one is a metric space must the other be as well?

Published on 14 Apr 2026 - 0:17

score 672 · Answer 10 · 2026-04-14 13:36:04

672

Views

Topology ... $x$ is in the closure of $A$ iff every basis element $B$ containing $x$ intersects $A$

Published on 14 Apr 2026 - 13:36

score 71 · Answer 11 · 2026-04-10 17:45:37

71

Views

A is closed in X$\Longleftrightarrow$ $\partial(A)\subset A$

Published on 10 Apr 2026 - 17:45

score 61 · Answer 12 · 2026-04-14 13:49:54

61

Views

Is this in fact a non-Hausdorff topology?

Published on 14 Apr 2026 - 13:49

score 26 · Answer 13 · 2026-04-12 05:13:26

26

Views

How to show there is no point in boundary for a convergent net in a closure?

Published on 12 Apr 2026 - 5:13

score 80 · Answer 14 · 2026-04-12 18:36:11

80

Views

Please give examples and how to figure them out

Published on 12 Apr 2026 - 18:36

score 258 · Answer 15 · 2026-04-14 14:26:27

258

Views

Example of closed set that is not a zero-set

Published on 14 Apr 2026 - 14:26

List Question

What is the meaning of this symbol ? $a)$ $C_b^0(\mathbb{R})$ $b)$ $C_c^{\infty}(\mathbb{R})$.

Operations on pullbacks of vector bundles.

Purpose of Metrizability

Showing that half-circle is Borel

Topology topics for Profinite Groups

The space obtained by attaching a subspace of a topological space to itself.

Let X be a set with subsets A and B. Prove X\(A\B) = B U (X\A)

prove that $A\cup B$ is connected

If two spaces are homeomorphic and one is a metric space must the other be as well?

Topology ... $x$ is in the closure of $A$ iff every basis element $B$ containing $x$ intersects $A$

A is closed in X$\Longleftrightarrow$ $\partial(A)\subset A$

Is this in fact a non-Hausdorff topology?

How to show there is no point in boundary for a convergent net in a closure?

Please give examples and how to figure them out

Example of closed set that is not a zero-set

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