List questions from abstract-algebra

Published on 14 Apr 2026 - 3:17

386

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Unital Ring Homomorphisms Questions

Published on 12 Apr 2026 - 7:13

1.5k

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All prime ideals of $\mathbf{R}[x,y]$ and $\mathbf{C}[x, y]$.

Published on 25 Mar 2026 - 6:05

85

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matrix first isomorphism problem

Published on 09 Apr 2026 - 3:51

238

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Natural projection of the billiard phase space

Published on 12 Apr 2026 - 7:07

58

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Mistake in the wording of a question about the cardinality of a set of primes?

Published on 09 Apr 2026 - 0:09

215

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The complex numbers as a quotient of $\prod_{p\in\mathcal{P}}\bar{\mathbb{F}}_p$

Published on 25 Mar 2026 - 18:49

35

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Confused about what to show a matrix is an element of GL(2,$\mathbb{R}$).

Published on 12 Apr 2026 - 13:03

159

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Proving the tower law through an inductive proof

Published on 25 Mar 2026 - 1:21

115

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tesselations in $1$ dimension (i.e., tiling a quotient group of integers with same-shaped subsets)

Published on 08 Apr 2026 - 23:10

374

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For $n \ge 3$, describe the elements of $D_n$. How many elements does $D_n$ have?

Published on 25 Mar 2026 - 3:02

53

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Establishing a particular isomorphism of groups

Published on 12 Apr 2026 - 18:41

337

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Semi-stable locally free sheaves on a curve of constant slope form an abelian category

Published on 09 Apr 2026 - 2:26

166

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Hamming Distance

Published on 06 Apr 2026 - 9:58

222

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Discrete Valuation Ring properties

Published on 13 Apr 2026 - 19:48

List Question

Why do elements in $\mathbb R[x]/(x^2)$ look like at most degree one polynomials?

Unital Ring Homomorphisms Questions

All prime ideals of $\mathbf{R}[x,y]$ and $\mathbf{C}[x, y]$.

matrix first isomorphism problem

Natural projection of the billiard phase space

Mistake in the wording of a question about the cardinality of a set of primes?

The complex numbers as a quotient of $\prod_{p\in\mathcal{P}}\bar{\mathbb{F}}_p$

Confused about what to show a matrix is an element of GL(2,$\mathbb{R}$).

Proving the tower law through an inductive proof

tesselations in $1$ dimension (i.e., tiling a quotient group of integers with same-shaped subsets)

For $n \ge 3$, describe the elements of $D_n$. How many elements does $D_n$ have?

Establishing a particular isomorphism of groups

Semi-stable locally free sheaves on a curve of constant slope form an abelian category

Hamming Distance

Discrete Valuation Ring properties

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