List questions from algebras

Published on 07 May 2021 - 22:39

67

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Does an $R$ algebra always contain $R$?

Published on 18 May 2021 - 8:46

62

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Show that $\operatorname{Hom}(Ae_{1,1}, Ae_{2,2}) = 0$

Published on 01 Jun 2021 - 12:18

43

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Question about homomorphism of algebras

Published on 08 Jun 2021 - 21:41

239

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What does "associative up to homotopy" mean for $A_\infty$-algebras?

Published on 26 Mar 2026 - 19:00

280

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Good examples of modules and algebras?

Published on 17 Jun 2021 - 15:01

106

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Multiplication of a real algebra is a smooth map

Published on 31 Jul 2021 - 21:02

72

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Minimal right ideals in semisimple algebra

Published on 02 Aug 2021 - 12:33

59

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Integral commutative algebra's definition

Published on 10 Aug 2021 - 1:30

141

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Relation between an "algebra" in Analysis and in Algebra

Published on 17 Aug 2021 - 18:40

160

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Example of finite-dimensional module over a K-algebra without a composition series

Published on 30 Aug 2021 - 10:27

68

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Supposse $U, V$ and $W$ are subspaces of a coalgebra $C$. Show that $\Delta(U) \subseteq V\otimes W$ implies $U\subseteq V\cap W$.

Published on 26 Mar 2026 - 12:53

284

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Tensor product of rings: well-definedness of multiplication

Published on 02 Sep 2021 - 16:19

104

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Non-commutative algebra $A$ with a non-trivial maximal ideal $M$ such that $A/M$ is not a division algebra

Published on 25 Sep 2021 - 5:56

135

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Is every vector a function on the basis of the vector space?

Published on 30 Sep 2021 - 17:26

List Question

Showing algebra is division algebra

Does an $R$ algebra always contain $R$?

Show that $\operatorname{Hom}(Ae_{1,1}, Ae_{2,2}) = 0$

Question about homomorphism of algebras

What does "associative up to homotopy" mean for $A_\infty$-algebras?

Good examples of modules and algebras?

Multiplication of a real algebra is a smooth map

Minimal right ideals in semisimple algebra

Integral commutative algebra's definition

Relation between an "algebra" in Analysis and in Algebra

Example of finite-dimensional module over a K-algebra without a composition series

Supposse $U, V$ and $W$ are subspaces of a coalgebra $C$. Show that $\Delta(U) \subseteq V\otimes W$ implies $U\subseteq V\cap W$.

Tensor product of rings: well-definedness of multiplication

Non-commutative algebra $A$ with a non-trivial maximal ideal $M$ such that $A/M$ is not a division algebra

Is every vector a function on the basis of the vector space?

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