Question

For ideals $\mathfrak{a,b}$ if a solution $\mathfrak{c}$ to $\mathfrak{cb}=\mathfrak{a}$ exists, is it unique and equal $(\mathfrak{a}:\mathfrak{b})$?

score 57 · Answer 1 · 2019-06-28 23:35:34

57

Views

For ideals $\mathfrak{a,b}$ if a solution $\mathfrak{c}$ to $\mathfrak{cb}=\mathfrak{a}$ exists, is it unique and equal $(\mathfrak{a}:\mathfrak{b})$?

Published on 28 Jun 2019 - 23:35

score 98 · Answer 2 · 2026-03-28 20:54:02

98

Views

Are there any interesting categories/objects whose products are isomorphic to themselves?

Published on 28 Mar 2026 - 20:54

score 215 · Answer 3 · 2019-07-01 04:58:30

215

Views

$I \cap (J+K) =I \cap J + I\cap K $

Published on 01 Jul 2019 - 4:58

score 143 · Answer 4 · 2019-07-01 09:54:48

143

Views

Is there any statistically convergent real sequence, which is not almost convergent?

Published on 01 Jul 2019 - 9:54

score 252 · Answer 5 · 2026-03-26 17:27:56

252

Views

When does path connectedness implies convexity?

Published on 26 Mar 2026 - 17:27

score 401 · Answer 6 · 2026-02-23 02:55:24

401

Views

Is a continuous process with finite nonzero quadratic variation a semimartingale?

Published on 23 Feb 2026 - 2:55

score 117 · Answer 7 · 2019-07-03 17:41:56

117

Views

Function that grows as fast as sum of previous values

Published on 03 Jul 2019 - 17:41

score 355 · Answer 8 · 2019-07-05 20:47:44

355

Views

Are there any concrete examples of $\sigma$-algebra generated by a random variable?

Published on 05 Jul 2019 - 20:47

score 43 · Answer 9 · 2026-03-26 06:10:26

43

Views

A congruence involving generalized Lucas polynomials

Published on 26 Mar 2026 - 6:10

score 137 · Answer 10 · 2026-03-26 11:00:11

137

Views

Find $f:\mathbb{Q} \rightarrow \mathbb{R}$ where the mean value theorem fails

Published on 26 Mar 2026 - 11:00

score 76 · Answer 11 · 2019-07-10 13:45:05

76

Views

If $\sum_{1}^{\infty} a_n^2$ converges and $a_n$ is complex valued, then how about $\sum_{1}^{\infty} a_n/n$

Published on 10 Jul 2019 - 13:45

score 81 · Answer 12 · 2026-03-27 15:05:19

81

Views

Nonisomorphic Groups with the Same Order and Exponent

Published on 27 Mar 2026 - 15:05

score 165 · Answer 13 · 2026-03-25 09:53:36

165

Views

Counter-example wanted on a new formula for convex function

Published on 25 Mar 2026 - 9:53

score 46 · Answer 14 · 2026-03-27 03:43:19

46

Views

Is this counterexample of $\mathbb{P}( | X | \ge c) \le \frac{\text{Var}[X]}{c^2}$ correct?

Published on 27 Mar 2026 - 3:43

score 41 · Answer 15 · 2026-03-25 11:09:53

41

Views

Bound on matrix norms

Published on 25 Mar 2026 - 11:09

List Question

For ideals $\mathfrak{a,b}$ if a solution $\mathfrak{c}$ to $\mathfrak{cb}=\mathfrak{a}$ exists, is it unique and equal $(\mathfrak{a}:\mathfrak{b})$?

Are there any interesting categories/objects whose products are isomorphic to themselves?

$I \cap (J+K) =I \cap J + I\cap K $

Is there any statistically convergent real sequence, which is not almost convergent?

When does path connectedness implies convexity?

Is a continuous process with finite nonzero quadratic variation a semimartingale?

Function that grows as fast as sum of previous values

Are there any concrete examples of $\sigma$-algebra generated by a random variable?

A congruence involving generalized Lucas polynomials

Find $f:\mathbb{Q} \rightarrow \mathbb{R}$ where the mean value theorem fails

If $\sum_{1}^{\infty} a_n^2$ converges and $a_n$ is complex valued, then how about $\sum_{1}^{\infty} a_n/n$

Nonisomorphic Groups with the Same Order and Exponent

Counter-example wanted on a new formula for convex function

Is this counterexample of $\mathbb{P}( | X | \ge c) \le \frac{\text{Var}[X]}{c^2}$ correct?

Bound on matrix norms

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