List questions from ideals

Published on 25 Mar 2026 - 6:24

57

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Proving which ideals of $K[x,y]$ are primes or maximals.

Published on 25 Mar 2026 - 21:49

191

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About the definition of Fractional Ideals in Number Fields

Published on 21 Jun 2018 - 10:33

77

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Show $ab=0\Leftrightarrow (a)+(b)=R.$ for two zero divisors $a$ and $b$ in $R=\mathbb Z_{pq}$

Published on 21 Jun 2018 - 22:43

968

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Ideal generated by linear polynomials is radical?

Published on 22 Jun 2018 - 21:29

118

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$\mathrm{Ext}^1$ of ideal in $k[[x,y]]$

Published on 24 Jun 2018 - 18:37

62

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Special representatives for elements of a quotient ring

Published on 24 Jun 2018 - 23:50

303

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Non Zero ideals of $\mathbf{Z}_{12}$

Published on 27 Mar 2026 - 23:31

136

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If $R$ is a commutative ring with ideals $A$ and $B$ such that $AB$ is principal, then $A$ and $B$ are finitely generated.

Published on 01 Jul 2018 - 23:38

111

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Problem with ideal arithmetic in free relations of NFS

Published on 02 Jul 2018 - 13:00

102

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Prove that the ideal of $p\in \mathbb Z[x]$ with $p(1)$ even is not principal

Published on 02 Jul 2018 - 19:07

153

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Connection between ideals in $R$ and those in $R[x]$

Published on 02 Jul 2018 - 23:36

790

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ideals in $\mathbb{Q}(\sqrt{-5})$ with norm less than $100$?

Published on 25 Mar 2026 - 12:48

48

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Ideals in Commutative Rings Containing a Field

Published on 25 Mar 2026 - 23:07

74

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Show isomorphisms of abelian groups

Published on 04 Jul 2018 - 18:49

List Question

Finding the inverse of $x^3+x^2+1$ in $\Bbb F_2[x]/(x^4+x^2)$ with the Euclidean algorithm

Proving which ideals of $K[x,y]$ are primes or maximals.

About the definition of Fractional Ideals in Number Fields

Show $ab=0\Leftrightarrow (a)+(b)=R.$ for two zero divisors $a$ and $b$ in $R=\mathbb Z_{pq}$

Ideal generated by linear polynomials is radical?

$\mathrm{Ext}^1$ of ideal in $k[[x,y]]$

Special representatives for elements of a quotient ring

Non Zero ideals of $\mathbf{Z}_{12}$

If $R$ is a commutative ring with ideals $A$ and $B$ such that $AB$ is principal, then $A$ and $B$ are finitely generated.

Problem with ideal arithmetic in free relations of NFS

Prove that the ideal of $p\in \mathbb Z[x]$ with $p(1)$ even is not principal

Connection between ideals in $R$ and those in $R[x]$

ideals in $\mathbb{Q}(\sqrt{-5})$ with norm less than $100$?

Ideals in Commutative Rings Containing a Field

Show isomorphisms of abelian groups

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