Question

Finite groups $G$ with epimomorphisms $\phi_1,\phi_2 : F_2 \rightarrow G$ s.t. $|\phi_1(x^{-1}y^{-1}xy)|\neq|\phi_2(x^{-1}y^{-1}xy)|$.

score 205 · Answer 1 · 2026-04-01 18:50:44

205

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Finite groups $G$ with epimomorphisms $\phi_1,\phi_2 : F_2 \rightarrow G$ s.t. $|\phi_1(x^{-1}y^{-1}xy)|\neq|\phi_2(x^{-1}y^{-1}xy)|$.

Published on 01 Apr 2026 - 18:50

score 6.1k · Answer 2 · 2026-04-11 11:57:59

6.1k

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Regular space which is not Hausdorff

Published on 11 Apr 2026 - 11:57

score 5k · Answer 3 · 2026-04-11 16:03:20

5k

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Continuous image of a locally connected space which is not locally connected

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score 2.2k · Answer 4 · 2026-04-09 09:32:18

2.2k

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A simple example of Lindelöf space.

Published on 09 Apr 2026 - 9:32

score 127 · Answer 5 · 2026-04-12 04:49:36

127

Views

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score 9.9k · Answer 6 · 2026-04-10 16:18:29

9.9k

Views

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Published on 10 Apr 2026 - 16:18

score 28.9k · Answer 7 · 2026-04-13 02:03:24

28.9k

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Examples of types of mathematical models

Published on 13 Apr 2026 - 2:03

score 263 · Answer 8 · 2026-04-10 16:16:42

263

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Published on 10 Apr 2026 - 16:16

score 1k · Answer 9 · 2026-04-13 14:03:44

1k

Views

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Published on 13 Apr 2026 - 14:03

score 171 · Answer 10 · 2026-04-11 21:30:32

171

Views

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Published on 11 Apr 2026 - 21:30

score 1.6k · Answer 11 · 2026-03-25 18:45:45

1.6k

Views

locally compact Hausdorff space which is not second-countable

Published on 25 Mar 2026 - 18:45

score 145 · Answer 12 · 2026-04-11 22:04:48

145

Views

Must certain rings be isomorphic to $\mathbb{Z}[\sqrt{a}]$ for some $a$

Published on 11 Apr 2026 - 22:04

score 2.2k · Answer 13 · 2026-04-11 16:06:18

2.2k

Views

Examples of homeomorphisms between the real numbers and the positive real numbers?

Published on 11 Apr 2026 - 16:06

score 801 · Answer 14 · 2026-04-13 22:11:29

801

Views

Example of an injective function $g$ and function $f$ such that $g\circ f$ is not injective

Published on 13 Apr 2026 - 22:11

score 610 · Answer 15 · 2026-04-13 02:47:59

610

Views

Counterexample for finite dimensional weak convergence

Published on 13 Apr 2026 - 2:47

List Question

Finite groups $G$ with epimomorphisms $\phi_1,\phi_2 : F_2 \rightarrow G$ s.t. $|\phi_1(x^{-1}y^{-1}xy)|\neq|\phi_2(x^{-1}y^{-1}xy)|$.

Regular space which is not Hausdorff

Continuous image of a locally connected space which is not locally connected

A simple example of Lindelöf space.

Is the set of all distinct mathematical number types countable?

Is a semigroup $G$ with left identity and right inverses a group?

Examples of types of mathematical models

Example of a module for non-mathematicians

Is there any field of characteristic two that is not $\mathbb{Z}/2\mathbb{Z}$

Infinity and structures

locally compact Hausdorff space which is not second-countable

Must certain rings be isomorphic to $\mathbb{Z}[\sqrt{a}]$ for some $a$

Examples of homeomorphisms between the real numbers and the positive real numbers?

Example of an injective function $g$ and function $f$ such that $g\circ f$ is not injective

Counterexample for finite dimensional weak convergence

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