Question

If d.c.c. holds for irreducible closed sets is the topological space Noetherian?

score 123 · Answer 1 · 2026-04-14 18:02:26

123

Views

If d.c.c. holds for irreducible closed sets is the topological space Noetherian?

Published on 14 Apr 2026 - 18:02

score 815 · Answer 2 · 2026-05-10 19:05:57

815

Views

The relation between $M$ is orientable and the normal bundle of $M$ in $\mathbb{R}^n$ is trivial?

Published on 10 May 2026 - 19:05

score 291 · Answer 3 · 2026-04-14 03:43:32

291

Views

Examples of CW-complex with finite homotopy groups

Published on 14 Apr 2026 - 3:43

score 120 · Answer 4 · 2026-04-30 02:49:34

120

Views

Persistence Homology on a grid Distance measure

Published on 30 Apr 2026 - 2:49

score 378 · Answer 5 · 2026-05-10 19:35:36

378

Views

Second Stiefel-Whitney class and first Pontryagin class of total spaces of linear $S^2$ bundles over $S^4$

Published on 10 May 2026 - 19:35

score 280 · Answer 6 · 2026-04-16 09:24:14

280

Views

Why $H_m(X\times Y)\simeq \bigoplus_{p+q=m} H_p(X;H_q(Y))$ for singular homology?

Published on 16 Apr 2026 - 9:24

score 149 · Answer 7 · 2026-04-13 19:28:55

149

Views

Condition for a function $\widetilde \phi:\mathbb{H}\rightarrow \mathbb{H}$ to descend to $S_g$

Published on 13 Apr 2026 - 19:28

score 279 · Answer 8 · 2026-04-29 12:31:09

279

Views

Inverse as a function of bijective paths are also homotopic

Published on 29 Apr 2026 - 12:31

score 2.2k · Answer 9 · 2026-04-29 12:48:39

2.2k

Views

The map $p : S^1 → S^1$ given by $p(z) = z^2$ is a covering map. Generalize to $p(z) = z^n$.

Published on 29 Apr 2026 - 12:48

score 815 · Answer 10 · 2026-05-10 11:19:52

815

Views

Visualising $\pi_2(S^2)$ and $\pi_2(\mathbb{R}P^2)$

Published on 10 May 2026 - 11:19

score 215 · Answer 11 · 2026-04-29 12:05:52

215

Views

A fibration $p : E \rightarrow X$ is trivial iff $p$ is a homotopy equivalence

Published on 29 Apr 2026 - 12:05

score 150 · Answer 12 · 2026-04-29 12:25:55

150

Views

Computing homology groups, algebra confusion

Published on 29 Apr 2026 - 12:25

score 174 · Answer 13 · 2026-05-10 17:15:48

174

Views

Induced maps in local homology and isotopies

Published on 10 May 2026 - 17:15

score 51 · Answer 14 · 2026-05-02 20:02:49

51

Views

If $H \le \pi_1(X,x)$ is conjugate to $P_(\pi_1(Y, y))$, then $H \cong P_(\pi_1(Y, y'))$ for some $y' \in P^{-1}(x)$

Published on 02 May 2026 - 20:02

score 424 · Answer 15 · 2026-04-29 12:31:00

424

Views

Calculating the fundamental group of $S^1$ with SvK

Published on 29 Apr 2026 - 12:31

List Question

If d.c.c. holds for irreducible closed sets is the topological space Noetherian?

The relation between $M$ is orientable and the normal bundle of $M$ in $\mathbb{R}^n$ is trivial?

Examples of CW-complex with finite homotopy groups

Persistence Homology on a grid Distance measure

Second Stiefel-Whitney class and first Pontryagin class of total spaces of linear $S^2$ bundles over $S^4$

Why $H_m(X\times Y)\simeq \bigoplus_{p+q=m} H_p(X;H_q(Y))$ for singular homology?

Condition for a function $\widetilde \phi:\mathbb{H}\rightarrow \mathbb{H}$ to descend to $S_g$

Inverse as a function of bijective paths are also homotopic

The map $p : S^1 → S^1$ given by $p(z) = z^2$ is a covering map. Generalize to $p(z) = z^n$.

Visualising $\pi_2(S^2)$ and $\pi_2(\mathbb{R}P^2)$

A fibration $p : E \rightarrow X$ is trivial iff $p$ is a homotopy equivalence

Computing homology groups, algebra confusion

Induced maps in local homology and isotopies

If $H \le \pi_1(X,x)$ is conjugate to $P_(\pi_1(Y, y))$, then $H \cong P_(\pi_1(Y, y'))$ for some $y' \in P^{-1}(x)$

Calculating the fundamental group of $S^1$ with SvK

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