Question

Quotient of cartesian product by the right action of a group

score 315 · Answer 1 · 2026-04-13 08:25:19

315

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Quotient of cartesian product by the right action of a group

Published on 13 Apr 2026 - 8:25

score 33 · Answer 2 · 2026-04-13 16:16:57

33

Views

When is a quadratic polynomial over a ring a square?

Published on 13 Apr 2026 - 16:16

score 124 · Answer 3 · 2026-04-11 22:14:32

124

Views

Direct Product Decomposition

Published on 11 Apr 2026 - 22:14

score 402 · Answer 4 · 2026-04-15 22:01:00

402

Views

If the matrix rings over two Rings of the same size are isomorphic, then the scalar rings are isomorphic

Published on 15 Apr 2026 - 22:01

score 229 · Answer 5 · 2026-04-15 21:06:27

229

Views

Prove that every nonzero quotient ring element is zero divisor.

Published on 15 Apr 2026 - 21:06

score 104 · Answer 6 · 2026-04-11 04:03:51

104

Views

Factorising polynomial into irreducible ones.

Published on 11 Apr 2026 - 4:03

score 166 · Answer 7 · 2026-04-14 15:51:03

166

Views

Show that if R is ring with identity, $xy$ and $yx$ have inverse and $xy=yx$ then y has an inverse?

Published on 14 Apr 2026 - 15:51

score 96 · Answer 8 · 2026-04-15 21:16:14

96

Views

Clarification in early example of exact sequence in Eisenbud's Commutative Algebra

Published on 15 Apr 2026 - 21:16

score 49 · Answer 9 · 2026-04-13 17:01:53

49

Views

Is the extension ring still defined as polynomials evaluation when the generator doesn't commute with its elements?

Published on 13 Apr 2026 - 17:01

score 63 · Answer 10 · 2026-04-16 19:10:25

63

Views

Show that there can't exists $P,Q \in M^{n \times n}(A)$ (ring of matrices over commutative ring $A$) such that $PQ - QP = I$

Published on 16 Apr 2026 - 19:10

score 192 · Answer 11 · 2026-03-26 09:39:47

192

Views

Units and Zero Divisors in different Rings

Published on 26 Mar 2026 - 9:39

score 70 · Answer 12 · 2026-04-11 13:32:59

70

Views

Isomorphic finite rings?

Published on 11 Apr 2026 - 13:32

score 67 · Answer 13 · 2026-04-16 23:02:10

67

Views

Superfluous epimorphisms maps maximal submodules into maximal submodules

Published on 16 Apr 2026 - 23:02

score 199 · Answer 14 · 2026-04-29 18:18:24

199

Views

Can Field of fractions be Algebraically Closed?

Published on 29 Apr 2026 - 18:18

score 92 · Answer 15 · 2026-03-26 12:46:19

92

Views

Showing that in a well ordered ring homomorphic to $\mathbb{Z}$, there are no elements between zero and the ring's identity.

Published on 26 Mar 2026 - 12:46

List Question

Quotient of cartesian product by the right action of a group

When is a quadratic polynomial over a ring a square?

Direct Product Decomposition

If the matrix rings over two Rings of the same size are isomorphic, then the scalar rings are isomorphic

Prove that every nonzero quotient ring element is zero divisor.

Factorising polynomial into irreducible ones.

Show that if R is ring with identity, $xy$ and $yx$ have inverse and $xy=yx$ then y has an inverse?

Clarification in early example of exact sequence in Eisenbud's Commutative Algebra

Is the extension ring still defined as polynomials evaluation when the generator doesn't commute with its elements?

Show that there can't exists $P,Q \in M^{n \times n}(A)$ (ring of matrices over commutative ring $A$) such that $PQ - QP = I$

Units and Zero Divisors in different Rings

Isomorphic finite rings?

Superfluous epimorphisms maps maximal submodules into maximal submodules

Can Field of fractions be Algebraically Closed?

Showing that in a well ordered ring homomorphic to $\mathbb{Z}$, there are no elements between zero and the ring's identity.

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