List questions from ring-theory

Published on 12 Apr 2026 - 19:01

134

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Localisation (Algebra) Well defined

Published on 12 Apr 2026 - 9:04

105

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How to find PID?

Published on 09 Apr 2026 - 1:35

53

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the condition when a UFD is a PID

Published on 11 Apr 2026 - 3:21

765

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Henselization and completions of local rings & schemes

Published on 12 Apr 2026 - 16:17

697

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Every Ideal of the ring $R \times S$ (where R and S are rings) is the cartesian product of the ideals $J_1 \subseteq R$ and $J_2 \subseteq S$

Published on 16 Apr 2026 - 9:44

26

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Best thing we can say about the structure of $M_{n,m}(\mathbb{K})$ and $Hom(\mathbb{K}^n,\mathbb{K}^m)$

Published on 16 Apr 2026 - 0:33

130

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supposed non-principal ideal in the ring of gaussian integers

Published on 11 Apr 2026 - 16:42

153

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An interesting subring of $\Pi \mathbb{Z}$

Published on 11 Apr 2026 - 6:28

109

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Example of an infinite ring with an odd number of units?

Published on 11 Apr 2026 - 22:27

200

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I,J be nonzero ideal in a domain R,show that I∩J nonezero

Published on 16 Apr 2026 - 14:14

53

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Existence of ring homomorphism from $\mathbb{Z}[[x]] \to \mathbb{Z} $

Published on 25 Mar 2026 - 19:06

210

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Is there a classification of all classifications in mathematics?

Published on 26 Mar 2026 - 19:17

640

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Proving "to contain is to divide" for Dedekind domains

Published on 13 Apr 2026 - 22:32

185

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subring of $\mathbb{Q}_p$

Published on 16 Apr 2026 - 21:20

List Question

question involved ideal and algebra

Localisation (Algebra) Well defined

How to find PID?

the condition when a UFD is a PID

Henselization and completions of local rings & schemes

Every Ideal of the ring $R \times S$ (where R and S are rings) is the cartesian product of the ideals $J_1 \subseteq R$ and $J_2 \subseteq S$

Best thing we can say about the structure of $M_{n,m}(\mathbb{K})$ and $Hom(\mathbb{K}^n,\mathbb{K}^m)$

supposed non-principal ideal in the ring of gaussian integers

An interesting subring of $\Pi \mathbb{Z}$

Example of an infinite ring with an odd number of units?

I,J be nonzero ideal in a domain R,show that I∩J nonezero

Existence of ring homomorphism from $\mathbb{Z}[[x]] \to \mathbb{Z} $

Is there a classification of all classifications in mathematics?

Proving "to contain is to divide" for Dedekind domains

subring of $\mathbb{Q}_p$

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