List questions from connectedness

Published on 16 Feb 2017 - 7:21

71

Views

A connected subset

Published on 18 Feb 2017 - 15:01

185

Views

The unit circle has no cut points

Published on 21 Feb 2017 - 2:39

98

Views

Set of all rational points in unit ball

Published on 23 Feb 2017 - 14:32

331

Views

Must the complement of countably many disjoint arcs be connected?

Published on 27 Mar 2026 - 12:03

507

Views

Connected Graph Proof (still connected after deleting any one node)

Published on 26 Mar 2026 - 16:03

316

Views

How do the subgroups of $(\mathbb C,+)$ which are connected (path connected) in $\mathbb C$ look like?

Published on 26 Mar 2026 - 12:34

3k

Views

Prove every convex set in $\mathbb{R}^k$ is connected.

Published on 01 Mar 2017 - 18:07

799

Views

Compact iff connected

Published on 02 Mar 2017 - 15:35

172

Views

Clarification of answer to "Connectedness of the spectrum of a tensor product"

Published on 09 Mar 2017 - 11:09

330

Views

$W$ be an $m$-dimensional linear subspace of $\mathbb R^n$ such that $m\le n-2$ , then is it true that $\mathbb R^n \setminus W$ is connected?

Published on 27 Mar 2026 - 13:28

126

Views

k-connectedness of simplicial complexes

Published on 26 Mar 2026 - 12:33

233

Views

Find simple graphs of diameter 3 where edge connectivity doesn't equal minimum degree

Published on 15 Mar 2017 - 14:57

448

Views

Does a boundary for $\mathbb R^n_+$ exist?

Published on 16 Mar 2017 - 21:35

516

Views

Is the property of local connectedness or local path-connectedness invariant under homotopy equivalence?

Published on 23 Feb 2026 - 1:08

List Question

Is $S_{\Omega}$ locally connected?

A connected subset

The unit circle has no cut points

Set of all rational points in unit ball

Must the complement of countably many disjoint arcs be connected?

Connected Graph Proof (still connected after deleting any one node)

How do the subgroups of $(\mathbb C,+)$ which are connected (path connected) in $\mathbb C$ look like?

Prove every convex set in $\mathbb{R}^k$ is connected.

Compact iff connected

Clarification of answer to "Connectedness of the spectrum of a tensor product"

$W$ be an $m$-dimensional linear subspace of $\mathbb R^n$ such that $m\le n-2$ , then is it true that $\mathbb R^n \setminus W$ is connected?

k-connectedness of simplicial complexes

Find simple graphs of diameter 3 where edge connectivity doesn't equal minimum degree

Does a boundary for $\mathbb R^n_+$ exist?

Is the property of local connectedness or local path-connectedness invariant under homotopy equivalence?

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