Question

Compute the fundamental group of a five - pointed star ( boundary plus interior )

score 119 · Answer 1 · 2026-03-25 17:39:35

119

Views

Compute the fundamental group of a five - pointed star ( boundary plus interior )

Published on 25 Mar 2026 - 17:39

score 115 · Answer 2 · 2026-03-25 17:42:09

115

Views

Compute the fundamental group of the union of 2 cubes joined at one corner and otherwise disjoint.

Published on 25 Mar 2026 - 17:42

score 129 · Answer 3 · 2019-07-09 16:03:02

129

Views

Why is $\mathbb Z$ a $\mathbb Z[\pi]-$module?

Published on 09 Jul 2019 - 16:03

score 762 · Answer 4 · 2019-07-10 11:27:24

762

Views

Why does a convex set have trivial fundamental group?

Published on 10 Jul 2019 - 11:27

score 417 · Answer 5 · 2026-03-26 11:04:09

417

Views

Deck or Monodromy actions to define homology with local coefficients

Published on 26 Mar 2026 - 11:04

score 111 · Answer 6 · 2026-03-25 19:09:53

111

Views

The Fundamental group of the circle from "Introduction to knot theory", Ralph H. Fox (1)

Published on 25 Mar 2026 - 19:09

score 51 · Answer 7 · 2026-03-25 19:10:09

51

Views

The Fundamental group of the circle from "Introduction to knot theory", Ralph H. Fox (3)

Published on 25 Mar 2026 - 19:10

score 1.9k · Answer 8 · 2019-07-17 09:01:29

1.9k

Views

Fundamental group of $S^3$ with finitely many points removed?

Published on 17 Jul 2019 - 9:01

score 150 · Answer 9 · 2026-03-25 19:10:04

150

Views

Telling the Borromean rings apart from the unlink - via $\pi_1 / \pi_1^{(n)}$

Published on 25 Mar 2026 - 19:10

score 146 · Answer 10 · 2026-03-25 22:30:45

146

Views

Map $\mathrm{Aut}_X(X_j)\to\mathrm{Aut}_X(X_i)$ in defining fundamental group of a scheme

Published on 25 Mar 2026 - 22:30

score 191 · Answer 11 · 2026-03-26 12:38:29

191

Views

A confusion on the proof of the fundamental theorem of covering space theory in J.P.May's book.

Published on 26 Mar 2026 - 12:38

score 102 · Answer 12 · 2026-03-25 19:10:05

102

Views

The Fundamental group of the circle from "Introduction to knot theory", Ralph H. Fox (1'')

Published on 25 Mar 2026 - 19:10

score 1.4k · Answer 13 · 2026-03-25 19:05:44

1.4k

Views

Elaborating why the fundamental group of the circle is infinite cyclic.

Published on 25 Mar 2026 - 19:05

score 162 · Answer 14 · 2019-08-07 03:27:16

162

Views

Does $X$ being path-connected and contractible mean the fundamental group of $X$ is trivial?

Published on 07 Aug 2019 - 3:27

score 213 · Answer 15 · 2019-08-07 07:04:03

213

Views

Van Kampen when the there is a cover by finitely many closed sets

Published on 07 Aug 2019 - 7:04

List Question

Compute the fundamental group of a five - pointed star ( boundary plus interior )

Compute the fundamental group of the union of 2 cubes joined at one corner and otherwise disjoint.

Why is $\mathbb Z$ a $\mathbb Z[\pi]-$module?

Why does a convex set have trivial fundamental group?

Deck or Monodromy actions to define homology with local coefficients

The Fundamental group of the circle from "Introduction to knot theory", Ralph H. Fox (1)

The Fundamental group of the circle from "Introduction to knot theory", Ralph H. Fox (3)

Fundamental group of $S^3$ with finitely many points removed?

Telling the Borromean rings apart from the unlink - via $\pi_1 / \pi_1^{(n)}$

Map $\mathrm{Aut}_X(X_j)\to\mathrm{Aut}_X(X_i)$ in defining fundamental group of a scheme

A confusion on the proof of the fundamental theorem of covering space theory in J.P.May's book.

The Fundamental group of the circle from "Introduction to knot theory", Ralph H. Fox (1'')

Elaborating why the fundamental group of the circle is infinite cyclic.

Does $X$ being path-connected and contractible mean the fundamental group of $X$ is trivial?

Van Kampen when the there is a cover by finitely many closed sets

Trending Questions

Popular # Hahtags

Popular Questions