List questions from noncommutative-algebra

Published on 13 Apr 2026 - 16:08

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Non-constant coefficient matrix in first order linear differential equations

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714

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Matrices over noncommutative rings?

Published on 12 Apr 2026 - 8:07

73

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The possible representations of a monoid derived from four "standard" or "regular" presentations and their relation

Published on 15 Apr 2026 - 3:25

849

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$S_4$ is not nilpotent but has central lower central series.

Published on 14 Apr 2026 - 21:16

246

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Confusion regarding the definition of the Weyl Algebra

Published on 10 May 2026 - 12:34

89

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Why does "noncommutative probability" capture quantum probability?

Published on 13 Apr 2026 - 4:35

731

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What are some simple examples of algebras?

Published on 10 May 2026 - 16:05

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Proving that the first Weyl Algebra is simple

Published on 10 May 2026 - 16:04

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Deriving the projection onto the isotypic component

Published on 13 Apr 2026 - 3:48

74

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An example of a ring homomorphism

Published on 14 Apr 2026 - 1:16

391

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Rings isomorphic to a proper subring

Published on 15 Apr 2026 - 9:02

106

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The definition of Jacobson radical

Published on 10 Apr 2026 - 15:41

229

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GRE 9768 #60 Boolean non-commutative rings: Prove $(-s)^2=s^2$ without commutativity.

Published on 29 Apr 2026 - 12:46

551

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$R$ semisimple $\implies M_n(R)$ is semsimple

Published on 09 Apr 2026 - 6:06

List Question

Classifying irreducible real representations

Non-constant coefficient matrix in first order linear differential equations

Matrices over noncommutative rings?

The possible representations of a monoid derived from four "standard" or "regular" presentations and their relation

$S_4$ is not nilpotent but has central lower central series.

Confusion regarding the definition of the Weyl Algebra

Why does "noncommutative probability" capture quantum probability?

What are some simple examples of algebras?

Proving that the first Weyl Algebra is simple

Deriving the projection onto the isotypic component

An example of a ring homomorphism

Rings isomorphic to a proper subring

The definition of Jacobson radical

GRE 9768 #60 Boolean non-commutative rings: Prove $(-s)^2=s^2$ without commutativity.

$R$ semisimple $\implies M_n(R)$ is semsimple

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