List questions from ideals

Published on 30 Mar 2026 - 0:05

138

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Showing that an epimorphism of an ideal is again an ideal

Published on 17 Dec 2014 - 13:14

58

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Example of ideals such that $I^n=0$ but $I^{n-1}\not= 0$

Published on 20 Dec 2014 - 5:41

2.5k

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Prove that an ideal is not maximal

Published on 30 Mar 2026 - 0:04

270

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The ring is a principal ideal domain, especially an integral domain.

Published on 28 Mar 2026 - 6:40

109

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Set of integer p-adics-Proposition

Published on 28 Mar 2026 - 0:47

960

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Height and coheight of an ideal

Published on 29 Mar 2026 - 23:59

173

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$p^2=p\in \bar{I}$, I ideal of Banach algebra $\Rightarrow p\in I$

Published on 27 Mar 2026 - 8:29

59

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Ideals of $\mathbb{Z}/{p_{1}^{k_{1}}..p_{m}^{k_{m}}}$

Published on 28 Mar 2026 - 13:41

131

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Does $(X)(Y)=(XY)$ for $X,Y\subseteq R$?

Published on 01 Apr 2026 - 19:07

165

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Equivalent conditions for an ideal to be prime

Published on 25 Dec 2014 - 11:53

2.3k

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Show that if $(a,b)=(1)$, then $(a^2,b^2)=(1)$

Published on 26 Dec 2014 - 0:00

485

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Spectrum of $\mathbb R[X,Y]$

Published on 29 Dec 2014 - 21:25

112

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For which countable successor ordinals $\alpha$ is the reverse order isomorphic to the ideals of a PID ordered by inclusion?

Published on 27 Mar 2026 - 16:17

29

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What is the definition of $I=(f(X,Y),g(X,Y))$?

Published on 31 Dec 2014 - 16:31

List Question

Alternative proof of '$I$ is maximal iff $R/I$ is a field'

Showing that an epimorphism of an ideal is again an ideal

Example of ideals such that $I^n=0$ but $I^{n-1}\not= 0$

Prove that an ideal is not maximal

The ring is a principal ideal domain, especially an integral domain.

Set of integer p-adics-Proposition

Height and coheight of an ideal

$p^2=p\in \bar{I}$, I ideal of Banach algebra $\Rightarrow p\in I$

Ideals of $\mathbb{Z}/{p_{1}^{k_{1}}..p_{m}^{k_{m}}}$

Does $(X)(Y)=(XY)$ for $X,Y\subseteq R$?

Equivalent conditions for an ideal to be prime

Show that if $(a,b)=(1)$, then $(a^2,b^2)=(1)$

Spectrum of $\mathbb R[X,Y]$

For which countable successor ordinals $\alpha$ is the reverse order isomorphic to the ideals of a PID ordered by inclusion?

What is the definition of $I=(f(X,Y),g(X,Y))$?

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