Sebastian

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20 Answers

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11	Computer Programs for Pure Mathematicians
10	Only proper ideal is $\{0\}$ $\implies f:A \rightarrow B$ is injective
7	Prime Ideal of a Polynomial Ring
6	Adjoint of forgetful functor between category of vector spaces and category of abelian groups
5	No isomorphism between $k[x,y]/(x^{2}-y^{5})$ and ring of polynomials in one indeterminate

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1,059 Reputation

+10	Intuition behind “ideal”
+5	Modules $M$ such that the automorphism of $M \otimes M \otimes M$ induced by the permutation $(123)$ is the identity
+5	Mod-$R$, Mod-$S$ and Mod-$R \otimes S$
+5	Support of a module with extended scalars

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3 Questions

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6	Modules $M$ such that the automorphism of $M \otimes M \otimes M$ induced by the permutation $(123)$ is the identity
4	Support of a module with extended scalars
4	Mod-$R$, Mod-$S$ and Mod-$R \otimes S$

28 Tags

31 abstract-algebra × 7	8 modules × 4
18 ring-theory × 3	6 vector-spaces
11 math-software	6 category-theory
11 computer-algebra-systems	6 abelian-groups
8 commutative-algebra × 7	5 algebraic-geometry × 2

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2 Accounts

$Mathematics Stack Exchange$	Mathematics	1,059 rep	612
	Android Enthusiasts	116 rep	1

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