Question

Give me such $p_1, q_1$ or $p_2,q_2$ for any $n\in\mathbb N$, $f^{i}(n)=1$ and $g^{j}(n)=1$

score 117 · Answer 1 · 2026-03-29 08:15:59

117

Views

Give me such $p_1, q_1$ or $p_2,q_2$ for any $n\in\mathbb N$, $f^{i}(n)=1$ and $g^{j}(n)=1$

Published on 29 Mar 2026 - 8:15

score 78 · Answer 2 · 2026-04-14 23:33:38

78

Views

Counterex. for 1. $V\cong V_1\times V_2 \Rightarrow V=V_1\oplus V_2$ and 2. $\phi:V\rightarrow V$ lin op $\Rightarrow V\cong \ker \phi\times im\phi$

Published on 14 Apr 2026 - 23:33

score 130 · Answer 3 · 2026-04-15 20:32:33

130

Views

For which $a\in\Bbb R^+$ is $\{1,a, a^a, a^{a^a},...\}$ linearly independent over $\Bbb Z$?

Published on 15 Apr 2026 - 20:32

score 216 · Answer 4 · 2026-03-29 08:18:23

216

Views

Possible variation of the $"3n+1"$ problem as $"3n+K"$

Published on 29 Mar 2026 - 8:18

score 193 · Answer 5 · 2026-04-13 16:16:30

193

Views

When does a group of dilations/scalings exist in a metric space?

Published on 13 Apr 2026 - 16:16

score 862 · Answer 6 · 2026-04-15 14:45:27

862

Views

Baire Category Theorem without Completeness

Published on 15 Apr 2026 - 14:45

score 317 · Answer 7 · 2026-04-12 15:23:34

317

Views

Give an example to show that $G$ must be assumed to be connected in Theorem 3.7 (Complex Variable, Conway 2ed)

Published on 12 Apr 2026 - 15:23

score 215 · Answer 8 · 2026-04-09 06:23:21

215

Views

The Hahn-Mazurkiewicz Theorem for non-metric spaces

Published on 09 Apr 2026 - 6:23

score 61 · Answer 9 · 2026-03-25 15:42:24

61

Views

Is there an analogue of Alexander's Theorem for Brunnian braids/links?

Published on 25 Mar 2026 - 15:42

score 220 · Answer 10 · 2026-04-12 01:59:47

220

Views

Is there a function which is "midpoint linear" but not linear?

Published on 12 Apr 2026 - 1:59

score 408 · Answer 11 · 2026-04-13 17:12:59

408

Views

Example of $(b_n)$ such that $\lim_{n\to\infty} {\frac1n}\sum_{i=1}^{n-1}b_i$ does not exists and $0\le b_n\le 1$

Published on 13 Apr 2026 - 17:12

score 7.6k · Answer 12 · 2026-04-14 12:22:11

7.6k

Views

What is a simple example of a free group?

Published on 14 Apr 2026 - 12:22

score 231 · Answer 13 · 2026-04-13 00:53:53

231

Views

Cyclically Presented Groups.

Published on 13 Apr 2026 - 0:53

score 353 · Answer 14 · 2026-04-13 08:17:05

353

Views

Can you find a counterexample to this inequality statement?

Published on 13 Apr 2026 - 8:17

score 370 · Answer 15 · 2026-04-17 04:39:33

370

Views

Self-complementary graphs having constant vertex degree

Published on 17 Apr 2026 - 4:39

List Question

Give me such $p_1, q_1$ or $p_2,q_2$ for any $n\in\mathbb N$, $f^{i}(n)=1$ and $g^{j}(n)=1$

Counterex. for 1. $V\cong V_1\times V_2 \Rightarrow V=V_1\oplus V_2$ and 2. $\phi:V\rightarrow V$ lin op $\Rightarrow V\cong \ker \phi\times im\phi$

For which $a\in\Bbb R^+$ is $\{1,a, a^a, a^{a^a},...\}$ linearly independent over $\Bbb Z$?

Possible variation of the $"3n+1"$ problem as $"3n+K"$

When does a group of dilations/scalings exist in a metric space?

Baire Category Theorem without Completeness

Give an example to show that $G$ must be assumed to be connected in Theorem 3.7 (Complex Variable, Conway 2ed)

The Hahn-Mazurkiewicz Theorem for non-metric spaces

Is there an analogue of Alexander's Theorem for Brunnian braids/links?

Is there a function which is "midpoint linear" but not linear?

Example of $(b_n)$ such that $\lim_{n\to\infty} {\frac1n}\sum_{i=1}^{n-1}b_i$ does not exists and $0\le b_n\le 1$

What is a simple example of a free group?

Cyclically Presented Groups.

Can you find a counterexample to this inequality statement?

Self-complementary graphs having constant vertex degree

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