Question

What is a semiring without commutativity requirement for addition?

score 775 · Answer 1 · 2026-03-25 16:00:19

775

Views

What is a semiring without commutativity requirement for addition?

Published on 25 Mar 2026 - 16:00

score 322 · Answer 2 · 2026-03-25 06:10:51

322

Views

Rings with isomorphic center not necessarily Morita equivalent

Published on 25 Mar 2026 - 6:10

score 665 · Answer 3 · 2016-08-30 05:42:44

665

Views

Condition on a prime ideal that implies it is maximal.

Published on 30 Aug 2016 - 5:42

score 81 · Answer 4 · 2016-08-30 15:02:10

81

Views

An equality between right ideals and Jacobson radical

Published on 30 Aug 2016 - 15:02

score 260 · Answer 5 · 2016-09-03 07:55:05

260

Views

Weyl algebra action on vector space of polynomials, cyclic module.

Published on 03 Sep 2016 - 7:55

score 160 · Answer 6 · 2016-09-05 20:21:14

160

Views

Does a completely reducible module have to be isomorphic to a finite sum of irreducible submodules?

Published on 05 Sep 2016 - 20:21

score 186 · Answer 7 · 2016-09-05 22:05:37

186

Views

Annihilator of various generators of a module

Published on 05 Sep 2016 - 22:05

score 416 · Answer 8 · 2026-02-23 04:01:31

416

Views

Are Semiprimitive (Jacobson Semisimple, J-Semisimple) Rings Dedekind Finite?

Published on 23 Feb 2026 - 4:01

score 143 · Answer 9 · 2016-09-12 04:20:59

143

Views

Example of a ring satisfying "no nonzero nilpotent commutators" but not "if $xy=0$, then $yx=0$ for all $x, y \in R$"

Published on 12 Sep 2016 - 4:20

score 1.9k · Answer 10 · 2016-09-15 06:22:27

1.9k

Views

Prove $R/M$ is a division ring for a non-commutative ring $R$ with max ideal $M$

Published on 15 Sep 2016 - 6:22

score 1.2k · Answer 11 · 2016-09-16 16:22:53

1.2k

Views

Proof of chinese remainder theorem, showing that Isomorphism is surjective

Published on 16 Sep 2016 - 16:22

score 164 · Answer 12 · 2016-09-18 19:19:19

164

Views

Construction of irreps of path algebra of cyclic quiver, classification of all finite-dimensional irreps.

Published on 18 Sep 2016 - 19:19

score 424 · Answer 13 · 2026-03-26 21:09:29

424

Views

Graded algebra and Hilbert–Poincaré series, closed formula, need some more detail.

Published on 26 Mar 2026 - 21:09

score 998 · Answer 14 · 2016-09-24 06:23:43

998

Views

Torsion elements do not form a submodule.

Published on 24 Sep 2016 - 6:23

score 336 · Answer 15 · 2016-09-28 16:59:05

336

Views

Lifting idempotents in semiperfect rings $R$ modulo ideals other than $\mathrm{rad}(R)$

Published on 28 Sep 2016 - 16:59

List Question

What is a semiring without commutativity requirement for addition?

Rings with isomorphic center not necessarily Morita equivalent

Condition on a prime ideal that implies it is maximal.

An equality between right ideals and Jacobson radical

Weyl algebra action on vector space of polynomials, cyclic module.

Does a completely reducible module have to be isomorphic to a finite sum of irreducible submodules?

Annihilator of various generators of a module

Are Semiprimitive (Jacobson Semisimple, J-Semisimple) Rings Dedekind Finite?

Example of a ring satisfying "no nonzero nilpotent commutators" but not "if $xy=0$, then $yx=0$ for all $x, y \in R$"

Prove $R/M$ is a division ring for a non-commutative ring $R$ with max ideal $M$

Proof of chinese remainder theorem, showing that Isomorphism is surjective

Construction of irreps of path algebra of cyclic quiver, classification of all finite-dimensional irreps.

Graded algebra and Hilbert–Poincaré series, closed formula, need some more detail.

Torsion elements do not form a submodule.

Lifting idempotents in semiperfect rings $R$ modulo ideals other than $\mathrm{rad}(R)$

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