List questions from noncommutative-algebra

Published on 26 Mar 2026 - 12:37

263

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Finite semisimple rings

Published on 26 May 2017 - 20:05

133

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Central group algebra over finite group

Published on 28 May 2017 - 15:40

19

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injective resolution of $kG$ where $G=C_2$, as a $kG^e$ module

Published on 26 Mar 2026 - 12:58

186

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$V$ is a representation of $G$ over $k$. Not necessarily semisimple. If $End_G(V) = K$, then is $V$ irreducible?

Published on 30 May 2017 - 9:21

383

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Definition of a 2-primal ring

Published on 06 Jun 2017 - 14:20

89

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$Hom_R(R,-):Mod_R\to Mod_R$ is not strong isomorphism?

Published on 18 Jun 2017 - 0:23

1.2k

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Is every finite dimensional semisimple algebra over $k$ isomorphic to a direct sum of finitely many matrix algebras over $k$?

Published on 23 Feb 2026 - 9:34

39

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On whether the construction of a certain type of Algebras(over a given field) from Graphs , functorial

Published on 19 Jun 2017 - 17:46

177

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Is $R\langle x_1,\ldots,x_n\rangle$ Noetherian?

Published on 28 Mar 2026 - 20:55

115

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Almost skew polynomial ring an integral domain?

Published on 28 Jun 2017 - 11:27

386

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Commutator of linear operators

Published on 28 Jun 2017 - 15:13

78

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Nilpotent elements and nil right ideals

Published on 30 Jun 2017 - 5:11

46

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VNR orthogonally finite rings

Published on 01 Jul 2017 - 5:04

141

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Intersection of ideals of $R$ and $eRe$

Published on 05 Jul 2017 - 7:56

List Question

Intuition behind restriction and extension of scalars of group rings

Finite semisimple rings

Central group algebra over finite group

injective resolution of $kG$ where $G=C_2$, as a $kG^e$ module

$V$ is a representation of $G$ over $k$. Not necessarily semisimple. If $End_G(V) = K$, then is $V$ irreducible?

Definition of a 2-primal ring

$Hom_R(R,-):Mod_R\to Mod_R$ is not strong isomorphism?

Is every finite dimensional semisimple algebra over $k$ isomorphic to a direct sum of finitely many matrix algebras over $k$?

On whether the construction of a certain type of Algebras(over a given field) from Graphs , functorial

Is $R\langle x_1,\ldots,x_n\rangle$ Noetherian?

Almost skew polynomial ring an integral domain?

Commutator of linear operators

Nilpotent elements and nil right ideals

VNR orthogonally finite rings

Intersection of ideals of $R$ and $eRe$

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