Question

Find all idempotent matrices such that $(A-B)^2 = 0$

score 110 · Answer 1 · 2023-06-04 18:57:28

110

Views

Find all idempotent matrices such that $(A-B)^2 = 0$

Published on 04 Jun 2023 - 18:57

score 49 · Answer 2 · 2026-03-25 06:08:18

49

Views

Orthogonal idempotents in rings without unity?

Published on 25 Mar 2026 - 6:08

score 13 · Answer 3 · 2023-06-13 09:45:20

13

Views

conditions for an algebra generated by idempotents to be solvable/nilpotent

Published on 13 Jun 2023 - 9:45

score 74 · Answer 4 · 2023-06-20 09:19:59

74

Views

Does there exist an idempotent, pseudo-constant $p$-adic function with an uncountable image?

Published on 20 Jun 2023 - 9:19

score 312 · Answer 5 · 2023-07-01 10:55:44

312

Views

How to prove $\mathbf{1}^\top\mathbf{Q}^+\mathbf{Q}=\mathbf{1}^\top$, where $\mathbf{Q}$ is any element-wise squared correlation matrix?

Published on 01 Jul 2023 - 10:55

score 124 · Answer 6 · 2023-07-17 11:45:07

124

Views

If $R$ is commutative and $I$ is a finitely generated ideal with $I^2=I$, then there exists an idempotent $e\in I$ with $I=Re$

Published on 17 Jul 2023 - 11:45

score 59 · Answer 7 · 2023-08-03 22:45:40

59

Views

The natural partial order on the set of idempotents in the semigroup of Boolean relation matrices.

Published on 03 Aug 2023 - 22:45

score 37 · Answer 8 · 2023-08-12 23:45:19

37

Views

Directly irreducible ring and central idempotents

Published on 12 Aug 2023 - 23:45

score 70 · Answer 9 · 2023-08-13 15:05:20

70

Views

Term for $eSe$ where $S$ is a semigroup and $e \in S$ is an idempotent

Published on 13 Aug 2023 - 15:05

score 69 · Answer 10 · 2023-08-19 23:31:20

69

Views

Are idempotents always central in a von Neumann regular ring?

Published on 19 Aug 2023 - 23:31

score 276 · Answer 11 · 2026-02-23 06:18:35

276

Views

Show that a division ring contains exactly two idempotent elements.

Published on 23 Feb 2026 - 6:18

score 66 · Answer 12 · 2026-03-25 11:53:40

66

Views

Category of algebraic vector bundles $VB(X)$ over a scheme $X$, which is not idempotent complete

Published on 25 Mar 2026 - 11:53

score 105 · Answer 13 · 2023-09-24 09:38:43

105

Views

Prove $\lVert A \rVert _{p} \geq 1$ for any idempotent matrix $A \neq 0$

Published on 24 Sep 2023 - 9:38

score 123 · Answer 14 · 2023-10-01 02:20:12

123

Views

about $\operatorname{tr}(A) = \operatorname{rank}(A)$ for idempotent matrix $A$

Published on 01 Oct 2023 - 2:20

score 55 · Answer 15 · 2023-10-19 20:43:17

55

Views

Number of idempotent functions

Published on 19 Oct 2023 - 20:43

List Question

Find all idempotent matrices such that $(A-B)^2 = 0$

Orthogonal idempotents in rings without unity?

conditions for an algebra generated by idempotents to be solvable/nilpotent

Does there exist an idempotent, pseudo-constant $p$-adic function with an uncountable image?

How to prove $\mathbf{1}^\top\mathbf{Q}^+\mathbf{Q}=\mathbf{1}^\top$, where $\mathbf{Q}$ is any element-wise squared correlation matrix?

If $R$ is commutative and $I$ is a finitely generated ideal with $I^2=I$, then there exists an idempotent $e\in I$ with $I=Re$

The natural partial order on the set of idempotents in the semigroup of Boolean relation matrices.

Directly irreducible ring and central idempotents

Term for $eSe$ where $S$ is a semigroup and $e \in S$ is an idempotent

Are idempotents always central in a von Neumann regular ring?

Show that a division ring contains exactly two idempotent elements.

Category of algebraic vector bundles $VB(X)$ over a scheme $X$, which is not idempotent complete

Prove $\lVert A \rVert _{p} \geq 1$ for any idempotent matrix $A \neq 0$

about $\operatorname{tr}(A) = \operatorname{rank}(A)$ for idempotent matrix $A$

Number of idempotent functions

Trending Questions

Popular # Hahtags

Popular Questions