Question

Ideals of subrings in a non-commutative semiprime Ring

score 90 · Answer 1 · 2026-04-17 12:48:44

90

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Ideals of subrings in a non-commutative semiprime Ring

Published on 17 Apr 2026 - 12:48

score 61 · Answer 2 · 2026-03-25 16:08:25

61

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How many ring homomorphisms they are:$\mathbb Z[x,\frac1x\ ] \to \mathbb Z_4,\mathbb Z[x]/(x^2) \to \mathbb Z_{24},\mathbb Z[x]/(x^3-1) \to \mathbb C$

Published on 25 Mar 2026 - 16:08

score 43 · Answer 3 · 2026-04-14 05:43:56

43

Views

Constructing the binary fractions via the Laurent polynomials $\Bbb Z[x,x^{-1}]$.

Published on 14 Apr 2026 - 5:43

score 747 · Answer 4 · 2026-04-12 00:32:24

747

Views

Primes in $Z/12Z$

Published on 12 Apr 2026 - 0:32

score 279 · Answer 5 · 2026-04-11 07:29:22

279

Views

Is the union of sigma algebras a sigma algebra?

Published on 11 Apr 2026 - 7:29

score 588 · Answer 6 · 2026-03-26 06:05:30

588

Views

integral closure is intersection of discrete valuation rings?

Published on 26 Mar 2026 - 6:05

score 364 · Answer 7 · 2026-05-10 16:07:18

364

Views

Does there exist a division ring without unity?

Published on 10 May 2026 - 16:07

score 607 · Answer 8 · 2026-04-16 23:14:11

607

Views

Prime elements in the subring $R = \mathbb Z + x \mathbb Q[x]$ of $ \mathbb Q[x]$

Published on 16 Apr 2026 - 23:14

score 59 · Answer 9 · 2026-05-05 21:22:22

59

Views

How does it follows that A normal local ring of altitude 1 is a valuation ring

Published on 05 May 2026 - 21:22

score 34 · Answer 10 · 2026-04-16 15:12:29

34

Views

Compact methods to verify that a set with binary operation/s is a group or ring or module?

Published on 16 Apr 2026 - 15:12

score 73 · Answer 11 · 2026-04-23 19:56:39

73

Views

Show that $E_1$ is algebraic over $K.$

Published on 23 Apr 2026 - 19:56

score 133 · Answer 12 · 2026-04-09 16:48:21

133

Views

Subring of $\mathbb{Z}[x,y]$ generated by $\{yx^i | i\geq 1\}$ is not Noetherian

Published on 09 Apr 2026 - 16:48

score 220 · Answer 13 · 2026-03-25 17:24:39

220

Views

Prime ideal in ring of polynomials

Published on 25 Mar 2026 - 17:24

score 58 · Answer 14 · 2026-04-16 17:25:31

58

Views

Show that $\mathbb{F}_7[\sqrt{-1}] := \{a+b\sqrt{-1}$ | $a,b \in \mathbb{F}_7\}$ is a ring

Published on 16 Apr 2026 - 17:25

score 99 · Answer 15 · 2026-04-16 08:26:00

99

Views

$\sum_{i \in I} \operatorname{ann}_l(\operatorname{ann}_r(S_i)) = \operatorname{ann}(\bigcap_{i \in I} \operatorname{ann}_r(S_i))$

Published on 16 Apr 2026 - 8:26

List Question

Ideals of subrings in a non-commutative semiprime Ring

How many ring homomorphisms they are:$\mathbb Z[x,\frac1x\ ] \to \mathbb Z_4,\mathbb Z[x]/(x^2) \to \mathbb Z_{24},\mathbb Z[x]/(x^3-1) \to \mathbb C$

Constructing the binary fractions via the Laurent polynomials $\Bbb Z[x,x^{-1}]$.

Primes in $Z/12Z$

Is the union of sigma algebras a sigma algebra?

integral closure is intersection of discrete valuation rings?

Does there exist a division ring without unity?

Prime elements in the subring $R = \mathbb Z + x \mathbb Q[x]$ of $ \mathbb Q[x]$

How does it follows that A normal local ring of altitude 1 is a valuation ring

Compact methods to verify that a set with binary operation/s is a group or ring or module?

Show that $E_1$ is algebraic over $K.$

Subring of $\mathbb{Z}[x,y]$ generated by $\{yx^i | i\geq 1\}$ is not Noetherian

Prime ideal in ring of polynomials

Show that $\mathbb{F}_7[\sqrt{-1}] := \{a+b\sqrt{-1}$ | $a,b \in \mathbb{F}_7\}$ is a ring

$\sum_{i \in I} \operatorname{ann}_l(\operatorname{ann}_r(S_i)) = \operatorname{ann}(\bigcap_{i \in I} \operatorname{ann}_r(S_i))$

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