Question

How to perform wedge product on a non-commutative algebra

score 109 · Answer 1 · 2026-03-25 20:41:54

109

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How to perform wedge product on a non-commutative algebra

Published on 25 Mar 2026 - 20:41

score 89 · Answer 2 · 2020-01-30 01:40:23

89

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Do the actions of unit group coincide on noncommutative rings?

Published on 30 Jan 2020 - 1:40

score 78 · Answer 3 · 2020-02-07 18:53:35

78

Views

Matrix over commutative ring with noncommutative diagonal perturbation

Published on 07 Feb 2020 - 18:53

score 92 · Answer 4 · 2026-03-27 01:01:01

92

Views

In free special Jordan algebra is valid $T(x,y,z,t) = \frac{1}{4}([x,z] \circ [t,y] + [x,t] \circ [z,y])$.

Published on 27 Mar 2026 - 1:01

score 113 · Answer 5 · 2026-03-26 22:48:16

113

Views

$(x,yz,t) = (x,y,t)z + (x,z,t)y$ holds in every Jordan algebra.

Published on 26 Mar 2026 - 22:48

score 251 · Answer 6 · 2020-02-20 09:30:19

251

Views

Is there any example of a simple Abelian ring which is not domain?

Published on 20 Feb 2020 - 9:30

score 204 · Answer 7 · 2026-03-25 23:53:01

204

Views

In a non-commutative ring (possibly without identity) with no nontrivial automorphisms, do nilpotent elements form an ideal?

Published on 25 Mar 2026 - 23:53

score 53 · Answer 8 · 2020-02-21 22:04:21

Is the quotient ring $R/I$ always Dedekind-finite, where $I$ is the two-sided ideal generated by all elements of the form $xy-1$ where $yx=1$?

score 84 · Answer 9 · 2020-02-25 15:04:18

84

Views

what if matrix multiplications were commutative

Published on 25 Feb 2020 - 15:04

score 405 · Answer 10 · 2020-03-04 18:10:35

405

Views

Reference for anti-commutative Binomial Theorem

Published on 04 Mar 2020 - 18:10

score 33 · Answer 11 · 2020-03-06 14:31:19

33

Views

Suppose that there exists $q \in Q_{ml}(R)$ such that $ D(x) = x^{\sigma}q - qx^{*}$ for all $x \in R$. Then $q \in Q_{ms}(R)$.

Published on 06 Mar 2020 - 14:31

score 176 · Answer 12 · 2026-03-25 16:06:46

176

Views

Kronecker product for matrices over noncommutative fields

Published on 25 Mar 2026 - 16:06

score 62 · Answer 13 · 2026-03-26 16:26:39

62

Views

Commutativity up to scalar implies commutativity in an algebra

Published on 26 Mar 2026 - 16:26

score 73 · Answer 14 · 2026-03-26 20:14:25

73

Views

General formula for permutation of modes in Virasoro algebra/ Explicit formula for general OPE structure constants

Published on 26 Mar 2026 - 20:14

score 34 · Answer 15 · 2020-03-26 22:54:51

34

Views

If the monoidal categories of $R$-bimodules and $S$-bimodules are monoidally equivalent, must $R$ and $S$ be Morita equivalent?

Published on 26 Mar 2020 - 22:54

List Question

How to perform wedge product on a non-commutative algebra

Do the actions of unit group coincide on noncommutative rings?

Matrix over commutative ring with noncommutative diagonal perturbation

In free special Jordan algebra is valid $T(x,y,z,t) = \frac{1}{4}([x,z] \circ [t,y] + [x,t] \circ [z,y])$.

$(x,yz,t) = (x,y,t)z + (x,z,t)y$ holds in every Jordan algebra.

Is there any example of a simple Abelian ring which is not domain?

In a non-commutative ring (possibly without identity) with no nontrivial automorphisms, do nilpotent elements form an ideal?

Is the quotient ring $R/I$ always Dedekind-finite, where $I$ is the two-sided ideal generated by all elements of the form $xy-1$ where $yx=1$?

what if matrix multiplications were commutative

Reference for anti-commutative Binomial Theorem

Suppose that there exists $q \in Q_{ml}(R)$ such that $ D(x) = x^{\sigma}q - qx^{*}$ for all $x \in R$. Then $q \in Q_{ms}(R)$.

Kronecker product for matrices over noncommutative fields

Commutativity up to scalar implies commutativity in an algebra

General formula for permutation of modes in Virasoro algebra/ Explicit formula for general OPE structure constants

If the monoidal categories of $R$-bimodules and $S$-bimodules are monoidally equivalent, must $R$ and $S$ be Morita equivalent?

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