List questions from ideals

Published on 28 Mar 2026 - 8:38

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$a^n = 0 \implies a \in P$ (where $P$ is a prime ideal)

Published on 28 May 2014 - 10:54

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Ideals in a Quadratic Number Field

Published on 28 May 2014 - 14:37

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Not so usual equivalence of maximal left ideal of a ring

Published on 28 May 2014 - 20:06

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Isomophism between rings an two right ideals

Published on 29 May 2014 - 1:47

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Example of a Banach algebra $ A $ whose only closed ideals are $ \{ 0 \} $ and $ A $.

Published on 26 Mar 2026 - 12:58

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Computing the Zariski cotangent space

Published on 26 Mar 2026 - 7:31

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Equivalent definitions of Jacobson rings

Published on 30 May 2014 - 10:40

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Let $R$ be a commutative ring with identity. Let $M$ be an ideal such that every element of $R-M$ is a unit. Then $R/M$ is a field.

Published on 31 May 2014 - 8:14

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Polynomial irreducible - maximal ideal

Published on 27 Mar 2026 - 22:52

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Non irreducible primary ideal in $K[x,y,z]$

Published on 03 Jun 2014 - 10:47

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Intersection of ideals

Published on 03 Jun 2014 - 11:49

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Product of ideals is contained in intersection. Seemingly contradiction.

Published on 03 Jun 2014 - 16:33

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Do $IJ$ and $I\cap J$ coincide if $I$ and $J$ are coprime? Also if ring $R$ has a $1$ and is not commutative?

Published on 04 Jun 2014 - 19:13

79

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What are the elements like in $\mathbb C[x]/(2x^2+5)$?

Published on 05 Jun 2014 - 8:53

List Question

Annihilator of a quotient module

$a^n = 0 \implies a \in P$ (where $P$ is a prime ideal)

Ideals in a Quadratic Number Field

Not so usual equivalence of maximal left ideal of a ring

Isomophism between rings an two right ideals

Example of a Banach algebra $ A $ whose only closed ideals are $ \{ 0 \} $ and $ A $.

Computing the Zariski cotangent space

Equivalent definitions of Jacobson rings

Let $R$ be a commutative ring with identity. Let $M$ be an ideal such that every element of $R-M$ is a unit. Then $R/M$ is a field.

Polynomial irreducible - maximal ideal

Non irreducible primary ideal in $K[x,y,z]$

Intersection of ideals

Product of ideals is contained in intersection. Seemingly contradiction.

Do $IJ$ and $I\cap J$ coincide if $I$ and $J$ are coprime? Also if ring $R$ has a $1$ and is not commutative?

What are the elements like in $\mathbb C[x]/(2x^2+5)$?

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