Question

Proving a set is open in context of proof of a step in local Inverse Function Theorem

score 57 · Answer 1 · 2026-05-10 18:05:46

57

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Proving a set is open in context of proof of a step in local Inverse Function Theorem

Published on 10 May 2026 - 18:05

score 82 · Answer 2 · 2026-04-14 07:09:14

82

Views

let $f$ be a entire function and $B$ is bounded open set. $\partial(f(B)) \subset f(\partial B)$.

Published on 14 Apr 2026 - 7:09

score 275 · Answer 3 · 2026-04-16 05:53:47

275

Views

Continuous and one-one map is open if images of subbase open sets are open sets

Published on 16 Apr 2026 - 5:53

score 634 · Answer 4 · 2026-04-09 00:54:46

634

Views

Are Embeddings open functions?

Published on 09 Apr 2026 - 0:54

score 109 · Answer 5 · 2026-04-17 15:55:53

109

Views

Continuous maps vs open maps in topological homeomorphisms

Published on 17 Apr 2026 - 15:55

score 762 · Answer 6 · 2026-04-14 13:37:29

762

Views

Prove that $[0,\infty)$ is not homeomorphic to $\mathbb{R}$ without connectedness

Published on 14 Apr 2026 - 13:37

score 192 · Answer 7 · 2026-04-10 04:44:32

192

Views

Open mapping theorem calculus proof via Banach-Schauder theorem

Published on 10 Apr 2026 - 4:44

score 100 · Answer 8 · 2026-04-13 08:24:49

100

Views

Questions about radially open sets topology.

Published on 13 Apr 2026 - 8:24

score 87 · Answer 9 · 2026-04-14 15:48:00

87

Views

Homeomorphic Image of $G_{\delta}$ is $G_{\delta}$

Published on 14 Apr 2026 - 15:48

score 1.8k · Answer 10 · 2026-04-17 07:31:11

1.8k

Views

Local compactness is preserved under continuous open onto mappings

Published on 17 Apr 2026 - 7:31

score 7.6k · Answer 11 · 2026-04-30 13:01:37

7.6k

Views

a covering map is open?

Published on 30 Apr 2026 - 13:01

score 751 · Answer 12 · 2019-10-09 09:35:58

751

Views

Sketch the open balls for the Railway Metric

Published on 09 Oct 2019 - 9:35

score 74 · Answer 13 · 2026-03-25 22:17:44

74

Views

Proving $X$ is compact using a function $f\colon X \to Y$?

Published on 25 Mar 2026 - 22:17

score 25 · Answer 14 · 2026-04-18 07:07:31

25

Views

Conditions for being an open map - check my proof

Published on 18 Apr 2026 - 7:07

score 215 · Answer 15 · 2019-10-29 23:02:53

215

Views

"A continuous map which is open but not closed"-can someone explain to me why this proof works?

Published on 29 Oct 2019 - 23:02

List Question

Proving a set is open in context of proof of a step in local Inverse Function Theorem

let $f$ be a entire function and $B$ is bounded open set. $\partial(f(B)) \subset f(\partial B)$.

Continuous and one-one map is open if images of subbase open sets are open sets

Are Embeddings open functions?

Continuous maps vs open maps in topological homeomorphisms

Prove that $[0,\infty)$ is not homeomorphic to $\mathbb{R}$ without connectedness

Open mapping theorem calculus proof via Banach-Schauder theorem

Questions about radially open sets topology.

Homeomorphic Image of $G_{\delta}$ is $G_{\delta}$

Local compactness is preserved under continuous open onto mappings

a covering map is open?

Sketch the open balls for the Railway Metric

Proving $X$ is compact using a function $f\colon X \to Y$?

Conditions for being an open map - check my proof

"A continuous map which is open but not closed"-can someone explain to me why this proof works?

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