List questions from commutative-algebra

Published on 25 Mar 2026 - 1:24

257

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Tensor product that is not $0$

Published on 26 Mar 2026 - 11:16

139

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How to interpret this strange property of the resultant for $f$ and $1-f$?

Published on 12 Apr 2018 - 6:26

111

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Why $\mathbb{C}[f_1(t),f_2(t)]=\mathbb{C}[t]$ iff $(f'_1(t),f'_2(t))\neq0$ and $t\mapsto (f_1(t),f_2(t))$ is injective?

Published on 12 Apr 2018 - 7:59

61

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The description of $k$-rational points of $A^G$, for $G$ a finite group acting on $A$

Published on 12 Apr 2018 - 16:51

167

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The set of associated primes are finite

Published on 12 Apr 2018 - 19:01

233

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$Norm_{(\mathbb Q(\zeta_p)|\mathbb Q)}(1-\zeta_p)=p$

Published on 13 Apr 2018 - 19:33

1k

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Proof that ideals of Dedekind domains are generated by at most two elements: how does the bolded step in the proof work?

Published on 25 Mar 2026 - 6:12

965

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When an integral extension of integral domains is flat?

Published on 22 Mar 2026 - 19:13

30

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Domain Property conserved after Tensoring with Transcendental Extension

Published on 28 Mar 2026 - 2:43

676

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Local complete intersection

Published on 14 Apr 2018 - 3:33

156

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Proof that a Scheme is connected

Published on 14 Apr 2018 - 11:06

129

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Reducedness and colimit

Published on 14 Apr 2018 - 20:46

304

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How to show that the ideal of curve given parametrically by $x=t^3,y=t^4,z=t^5$ can not be generated by two elements?

Published on 15 Apr 2018 - 15:33

1.1k

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what is krull dimension of Z[x]

Published on 15 Apr 2018 - 15:39

List Question

Noetherian domain and localization

Tensor product that is not $0$

How to interpret this strange property of the resultant for $f$ and $1-f$?

Why $\mathbb{C}[f_1(t),f_2(t)]=\mathbb{C}[t]$ iff $(f'_1(t),f'_2(t))\neq0$ and $t\mapsto (f_1(t),f_2(t))$ is injective?

The description of $k$-rational points of $A^G$, for $G$ a finite group acting on $A$

The set of associated primes are finite

$Norm_{(\mathbb Q(\zeta_p)|\mathbb Q)}(1-\zeta_p)=p$

Proof that ideals of Dedekind domains are generated by at most two elements: how does the bolded step in the proof work?

When an integral extension of integral domains is flat?

Domain Property conserved after Tensoring with Transcendental Extension

Local complete intersection

Proof that a Scheme is connected

Reducedness and colimit

How to show that the ideal of curve given parametrically by $x=t^3,y=t^4,z=t^5$ can not be generated by two elements?

what is krull dimension of Z[x]

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