List questions from ring-theory

Published on 16 Apr 2026 - 9:45

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Integral closure of a subring that is a polynomial ring over an algebraically closed field.

Published on 15 Apr 2026 - 0:45

3.3k

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$2 \mathbb{Z}$/$6 \mathbb{Z} $ is isomorphic to $\mathbb{Z_3}$

Published on 13 Apr 2026 - 11:24

318

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Quotient rings of polynomial rings

Published on 14 Apr 2026 - 13:52

236

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Why this Tensor product of fields is a field

Published on 13 Apr 2026 - 14:13

444

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Is there a direct proof that $M_n(\mathcal k)$ is semisimple ring.

Published on 13 Apr 2026 - 18:22

465

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Ideals generated for commutative ring

Published on 15 Apr 2026 - 5:59

207

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Find a ring homomorphism from $ \mathbb{Z}[x] \to \mathbb{Z}_7[\sqrt{3}] $

Published on 14 Apr 2026 - 15:20

99

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About the connection between ideals and homomorphisms

Published on 11 Apr 2026 - 2:43

85

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Polynomials in $\Bbb Q[x]$ with same real root dont have common divisor with degree more than 1

Published on 16 Apr 2026 - 1:05

224

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Evaluation maps over polynomials

Published on 13 Apr 2026 - 22:09

1.8k

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$x^p-x+a$ irreducible for nonzero $a\in K$ a field of characteristic $p$ prime

Published on 25 Mar 2026 - 10:35

61

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Ideals on Rings?How do i Define them?

Published on 12 Apr 2026 - 4:31

121

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Finding a ring isomorphism

Published on 11 Apr 2026 - 4:30

62

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principal ideals, integral domains, ideals,?

Published on 14 Apr 2026 - 0:17

List Question

Exercise from Rotman: formal power series ring as inverse limit

Integral closure of a subring that is a polynomial ring over an algebraically closed field.

$2 \mathbb{Z}$/$6 \mathbb{Z} $ is isomorphic to $\mathbb{Z_3}$

Quotient rings of polynomial rings

Why this Tensor product of fields is a field

Is there a direct proof that $M_n(\mathcal k)$ is semisimple ring.

Ideals generated for commutative ring

Find a ring homomorphism from $ \mathbb{Z}[x] \to \mathbb{Z}_7[\sqrt{3}] $

About the connection between ideals and homomorphisms

Polynomials in $\Bbb Q[x]$ with same real root dont have common divisor with degree more than 1

Evaluation maps over polynomials

$x^p-x+a$ irreducible for nonzero $a\in K$ a field of characteristic $p$ prime

Ideals on Rings?How do i Define them?

Finding a ring isomorphism

principal ideals, integral domains, ideals,?

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