List questions from rngs

Published on 07 Feb 2020 - 22:27

115

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Factorization in a principal ideal ring/rng

Published on 11 Feb 2020 - 17:34

280

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In a non-unitary commutative ring, every maximal ideal is primary?

Published on 18 Feb 2020 - 9:05

32

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Semiring of classes of associates of a ring/rng

Published on 26 Feb 2020 - 23:22

41

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Product of classes of associates in a commutative ring/rng

Published on 29 Feb 2020 - 12:42

331

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Maximal non-unit ideal in a ring with or without identity

Published on 13 Mar 2020 - 12:43

1.3k

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Sum of principal ideals in a commutative rng

Published on 16 Mar 2020 - 23:59

96

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Given prime ideal $P$ of ring $R$, does $RrR\subset P$ imply $r\in P$ for $r\in R$? (Hungerford)

Published on 08 Apr 2020 - 21:32

123

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Is the ring $3\mathbb Z$ a ring homomorphic image of the ring $2\mathbb Z$.

Published on 27 May 2020 - 5:32

115

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Characterization of Injective rings homomorphism from $\mathbb{Z}_m$ to $\mathbb{Z}_n$

Published on 29 May 2020 - 4:11

626

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Example that $R/I$ is not field where $R$ is a commutative ring and $I$ is maximal ideal.

Published on 16 Aug 2016 - 22:59

26

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Characteristic of a non unital integral domain

Published on 21 Aug 2016 - 18:23

166

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Is there a ring without unity which can be expressed as a union of its three proper ideals?

Published on 16 Sep 2016 - 4:54

1.4k

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Ring (without identity) of characteristic $n$ contains elements of any order $k$ dividing $n$

Published on 24 Sep 2016 - 12:01

221

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Ideals of the unitalization

Published on 25 Sep 2016 - 7:53

List Question

Element of a ring acting as a permutation on an ideal

Factorization in a principal ideal ring/rng

In a non-unitary commutative ring, every maximal ideal is primary?

Semiring of classes of associates of a ring/rng

Product of classes of associates in a commutative ring/rng

Maximal non-unit ideal in a ring with or without identity

Sum of principal ideals in a commutative rng

Given prime ideal $P$ of ring $R$, does $RrR\subset P$ imply $r\in P$ for $r\in R$? (Hungerford)

Is the ring $3\mathbb Z$ a ring homomorphic image of the ring $2\mathbb Z$.

Characterization of Injective rings homomorphism from $\mathbb{Z}_m$ to $\mathbb{Z}_n$

Example that $R/I$ is not field where $R$ is a commutative ring and $I$ is maximal ideal.

Characteristic of a non unital integral domain

Is there a ring without unity which can be expressed as a union of its three proper ideals?

Ring (without identity) of characteristic $n$ contains elements of any order $k$ dividing $n$

Ideals of the unitalization

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