rschwieb

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ra.rings-and-algebras

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12

Simple component that is not a two-sided ideal

Oct 12, 2022

10

Atlas-like websites on specific areas of mathematics

Mar 7, 2020

7

Jacobson ring = a ring whose nilradical and Jacobson radical coincide?

Apr 3, 2014

6

What does the semiring of ideals of a ring R tell us about R?

Dec 14, 2011

5

Rings in which every non-unit is a zero divisor

Dec 14, 2011

Questions

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13

Non-field example of a commutative, local, dual ring with nilradical $N$ such that $ann(N)\nsubseteq N$

Jun 26, 2015

9

Where is it shown that a countable self-injective ring is semilocal?

Jun 9, 2018

7

Using Dunwoody's results on cohomological dimension to learn about a von Neumann regular group ring

Apr 5, 2018

7

Symmetry of unique generator property

Aug 17, 2022

5

Finding non-inner derivations of simple $\mathbb Q$-algebras

Mar 2, 2022

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ra.rings-and-algebras

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29

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ac.commutative-algebra

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noncommutative-rings

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counterexamples

12

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rt.representation-theory

12

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post

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+10

Which definitions of "local module" have gotten traction?

+25

Two nonsingular non-isomorphic modules with isomorphic injective hulls

+45

Local rings whose the endomorphism rings of E(R/J) is division ring

+15

Classification of real Clifford algebras

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