Question

Is the induced map on fundamental groups corresponding to inclusion injective?

score 2.2k · Answer 1 · 2026-04-11 06:29:39

2.2k

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Is the induced map on fundamental groups corresponding to inclusion injective?

Published on 11 Apr 2026 - 6:29

score 103 · Answer 2 · 2026-04-12 21:30:23

103

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What does the anitpodal map do to the homology groups of a sphere?

Published on 12 Apr 2026 - 21:30

score 2.2k · Answer 3 · 2026-04-12 20:34:35

2.2k

Views

Covering of a CW-complex is a CW-complex

Published on 12 Apr 2026 - 20:34

score 1.5k · Answer 4 · 2026-04-14 21:01:00

1.5k

Views

Why must a map from $X$ to $S^{n}$ not be onto for it to be null homotopic

Published on 14 Apr 2026 - 21:01

score 3.6k · Answer 5 · 2026-04-15 00:37:15

3.6k

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Presentation $\langle x,y,z\mid xyx^{-1}y^{-2},yzy^{-1}z^{-2},zxz^{-1}x^{-2}\rangle$ of group equal to trivial group

Published on 15 Apr 2026 - 0:37

score 280 · Answer 6 · 2026-03-25 22:30:53

280

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Characteristic class integral: on what manifold does $\int c_1 \wedge w_2 = \int c_1 \wedge c_1$ hold?

Published on 25 Mar 2026 - 22:30

score 95 · Answer 7 · 2026-04-14 08:50:00

95

Views

Existence of covering space

Published on 14 Apr 2026 - 8:50

score 1.8k · Answer 8 · 2026-04-15 13:23:22

1.8k

Views

On chain homotopy equivalence

Published on 15 Apr 2026 - 13:23

score 45 · Answer 9 · 2026-04-15 17:59:24

45

Views

Adaptions I have to make to go from integer coefficients to coefficients in $R$

Published on 15 Apr 2026 - 17:59

score 221 · Answer 10 · 2026-04-14 23:43:28

221

Views

Homotopic maps from $\mathbb{S}^{n} \to \mathbb{S}^{n}$

Published on 14 Apr 2026 - 23:43

score 807 · Answer 11 · 2026-04-09 22:01:59

807

Views

The Path Lifting Theorm for Local Homeomorphisms

Published on 09 Apr 2026 - 22:01

score 131 · Answer 12 · 2026-04-12 16:27:27

131

Views

Describing generators for the fundamental group of an elliptic curve given by an equation

Published on 12 Apr 2026 - 16:27

score 235 · Answer 13 · 2026-04-13 10:27:34

235

Views

Torsion in the Real Projective Plane

Published on 13 Apr 2026 - 10:27

score 1.1k · Answer 14 · 2026-04-15 09:05:57

1.1k

Views

Barratt Whitehead Lemma, Proving exactness at the 'direct sum' module

Published on 15 Apr 2026 - 9:05

score 1.2k · Answer 15 · 2026-04-16 09:19:09

1.2k

Views

Quantization of Chern number $c_1^n$ on 2n dimensional spin manifold

Published on 16 Apr 2026 - 9:19

List Question

Is the induced map on fundamental groups corresponding to inclusion injective?

What does the anitpodal map do to the homology groups of a sphere?

Covering of a CW-complex is a CW-complex

Why must a map from $X$ to $S^{n}$ not be onto for it to be null homotopic

Presentation $\langle x,y,z\mid xyx^{-1}y^{-2},yzy^{-1}z^{-2},zxz^{-1}x^{-2}\rangle$ of group equal to trivial group

Characteristic class integral: on what manifold does $\int c_1 \wedge w_2 = \int c_1 \wedge c_1$ hold?

Existence of covering space

On chain homotopy equivalence

Adaptions I have to make to go from integer coefficients to coefficients in $R$

Homotopic maps from $\mathbb{S}^{n} \to \mathbb{S}^{n}$

The Path Lifting Theorm for Local Homeomorphisms

Describing generators for the fundamental group of an elliptic curve given by an equation

Torsion in the Real Projective Plane

Barratt Whitehead Lemma, Proving exactness at the 'direct sum' module

Quantization of Chern number $c_1^n$ on 2n dimensional spin manifold

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