List questions from noncommutative-algebra

Published on 25 Mar 2026 - 16:12

57

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Characteristic of ring $R_1\otimes\ldots\otimes R_k$

Published on 20 Apr 2014 - 22:21

504

Views

Noncommutative finitely generated algebras need not be noetherian

Published on 25 Mar 2026 - 20:09

79

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Examples of algebras having a module basis

Published on 21 Apr 2014 - 21:10

182

Views

Group algebra is a tensor product?

Published on 23 Apr 2014 - 3:43

116

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When does a sequence of finitely generated $k[G]$ modules split?

Published on 23 Apr 2014 - 14:44

291

Views

Determine up to isomorphism all semisimple noncommutative rings with order 512

Published on 26 Apr 2014 - 19:19

462

Views

Books on Rings without Identity

Published on 23 Mar 2026 - 7:43

114

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Showing that $\operatorname {Br}(\Bbb F_q)=0$

Published on 03 May 2014 - 23:09

2.7k

Views

Endomorphisms of direct sum and division ring

Published on 25 Mar 2026 - 7:42

90

Views

A 4-dimensional algebra over a field is a division algebra iff it doesn't have zerodivisors iff it's not a matrix algebra

Published on 05 May 2014 - 13:32

220

Views

$\operatorname{Br}(\Bbb Q_{47})$

Published on 22 Mar 2026 - 6:41

65

Views

Question about quaternionic conjugation

Published on 05 May 2014 - 19:51

4.8k

Views

Is the center of a ring an ideal?

Published on 13 May 2014 - 5:26

165

Views

isomorphism $ \Bbb CG $ modules

Published on 18 May 2014 - 21:28

List Question

The first Weyl algebra is Calabi-Yau

Characteristic of ring $R_1\otimes\ldots\otimes R_k$

Noncommutative finitely generated algebras need not be noetherian

Examples of algebras having a module basis

Group algebra is a tensor product?

When does a sequence of finitely generated $k[G]$ modules split?

Determine up to isomorphism all semisimple noncommutative rings with order 512

Books on Rings without Identity

Showing that $\operatorname {Br}(\Bbb F_q)=0$

Endomorphisms of direct sum and division ring

A 4-dimensional algebra over a field is a division algebra iff it doesn't have zerodivisors iff it's not a matrix algebra

$\operatorname{Br}(\Bbb Q_{47})$

Question about quaternionic conjugation

Is the center of a ring an ideal?

isomorphism $ \Bbb CG $ modules

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