List questions from cw-complexes

Published on 22 May 2023 - 15:17

80

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Handle body $H_g$ of genus $g$ as a CW complex

Published on 26 Mar 2026 - 4:34

113

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Can $S^1$ act freely on $\mathbb{C}P^2$?

Published on 30 May 2023 - 2:23

84

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CW complex as a disjoint union of cells - is the union really disjoint though?

Published on 31 May 2023 - 7:13

191

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How to prove that $\mathbb {CP}^\infty$ represents $H^2(-; \mathbb Z)$ without using a cell decomposition?

Published on 25 Mar 2026 - 11:10

59

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What does $\cup _f$ mean?

Published on 09 Jun 2023 - 15:49

115

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Intuition - attaching an $n$-cell to $X$ in algebraic topology

Published on 09 Jun 2023 - 18:51

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Published on 11 Jun 2023 - 3:52

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Computing homotopy classes of maps between small finite CW complexes

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Constructing $X$ with $π_1(X) ≅ ℝ$

Published on 28 Jun 2023 - 23:26

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Published on 29 Jun 2023 - 18:31

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A (short) proof for the paracompactness of CW complexes

Published on 23 Feb 2026 - 2:38

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Fundamental group of CW complexes

Published on 03 Jul 2023 - 10:53

104

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Understanding the CW decomposition of the real projective $n$-space

Published on 04 Jul 2023 - 2:44

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CW structure of $S^2$ with two poles identified

Published on 08 Jul 2023 - 9:36

List Question

A CW-complex is compact if and only if it is finite

Handle body $H_g$ of genus $g$ as a CW complex

Can $S^1$ act freely on $\mathbb{C}P^2$?

CW complex as a disjoint union of cells - is the union really disjoint though?

How to prove that $\mathbb {CP}^\infty$ represents $H^2(-; \mathbb Z)$ without using a cell decomposition?

What does $\cup _f$ mean?

Intuition - attaching an $n$-cell to $X$ in algebraic topology

Confusion about orientations in cellular boundary formula

Computing homotopy classes of maps between small finite CW complexes

Constructing $X$ with $π_1(X) ≅ ℝ$

Question about CW complex

A (short) proof for the paracompactness of CW complexes

Fundamental group of CW complexes

Understanding the CW decomposition of the real projective $n$-space

CW structure of $S^2$ with two poles identified

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