Question

The Jacobson Radical of a Matrix Algebra

score 2.1k · Answer 1 · 2012-05-17 03:00:40

2.1k

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The Jacobson Radical of a Matrix Algebra

Published on 17 May 2012 - 3:00

score 720 · Answer 2 · 2012-05-17 15:25:45

720

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On the length of a ring

Published on 17 May 2012 - 15:25

score 1k · Answer 3 · 2012-05-19 15:08:57

1k

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Finding all simple $R$ modules of a ring.

Published on 19 May 2012 - 15:08

score 333 · Answer 4 · 2012-05-19 18:41:12

333

Views

Is there a simple example of a ring that satifies the DCC on two-sided ideals, but doesn't satisfy the ACC on two-sided ideals?

Published on 19 May 2012 - 18:41

score 774 · Answer 5 · 2012-05-19 21:16:38

774

Views

Does my definition of double complex noncommutative numbers make any sense?

Published on 19 May 2012 - 21:16

score 755 · Answer 6 · 2012-05-21 19:11:01

755

Views

invertible polynomials over non-commutative rings

Published on 21 May 2012 - 19:11

score 449 · Answer 7 · 2012-05-24 20:17:20

449

Views

Is every semi-simple ring a product of simple rings

Published on 24 May 2012 - 20:17

score 104 · Answer 8 · 2012-05-28 04:46:31

104

Views

Question concerning an isomorphism between a tensor product and a finite-dimensional K-algebra.

Published on 28 May 2012 - 4:46

score 113 · Answer 9 · 2026-04-02 09:38:00

113

Views

Diamonds of ideals, part 3

Published on 02 Apr 2026 - 9:38

score 194 · Answer 10 · 2012-06-17 11:05:53

194

Views

When does multiplication with an ideal commute with the product of modules?

Published on 17 Jun 2012 - 11:05

score 330 · Answer 11 · 2026-03-26 11:01:37

330

Views

Does this notion of morphism of noncommutative rings appear in the ring theory literature?

Published on 26 Mar 2026 - 11:01

score 2.3k · Answer 12 · 2012-06-30 22:06:12

2.3k

Views

A weak converse of $AB=BA\implies e^Ae^B=e^Be^A$ from "Topics in Matrix Analysis" for matrices of algebraic numbers.

Published on 30 Jun 2012 - 22:06

score 4.4k · Answer 13 · 2012-07-02 00:28:03

4.4k

Views

proof of Zassenhaus formula for exponentials of linear operators

Published on 02 Jul 2012 - 0:28

score 33 · Answer 14 · 2012-07-07 17:25:26

33

Views

If $A^n$ has a free subset of $n+1$ elements, it has an infinite free subset.

Published on 07 Jul 2012 - 17:25

score 599 · Answer 15 · 2012-07-08 22:19:18

599

Views

Is there a unique homomorphism extension for noncommutative rings in this proof?

Published on 08 Jul 2012 - 22:19

List Question

The Jacobson Radical of a Matrix Algebra

On the length of a ring

Finding all simple $R$ modules of a ring.

Is there a simple example of a ring that satifies the DCC on two-sided ideals, but doesn't satisfy the ACC on two-sided ideals?

Does my definition of double complex noncommutative numbers make any sense?

invertible polynomials over non-commutative rings

Is every semi-simple ring a product of simple rings

Question concerning an isomorphism between a tensor product and a finite-dimensional K-algebra.

Diamonds of ideals, part 3

When does multiplication with an ideal commute with the product of modules?

Does this notion of morphism of noncommutative rings appear in the ring theory literature?

A weak converse of $AB=BA\implies e^Ae^B=e^Be^A$ from "Topics in Matrix Analysis" for matrices of algebraic numbers.

proof of Zassenhaus formula for exponentials of linear operators

If $A^n$ has a free subset of $n+1$ elements, it has an infinite free subset.

Is there a unique homomorphism extension for noncommutative rings in this proof?

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