List questions from idempotents

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Rings with zero divisors in which $x^2=x$ implies $x\in\{0,1\}$

Published on 28 Dec 2013 - 21:43

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Is there a standard name for a set equipped only with an idempotent binary operation?

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category theory, idempotent, splitting

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uniqueness of split idempotent

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Show $\mathbb F_{p}[x]/(x^{p}-1)$ is indecomposable as a representation of $\mathbb Z/ p\mathbb Z$

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Idempotents in a ring without unity (rng) and no zero divisors.

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Sum of primitive idempotents

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107

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Are the two prime ideals containing same idempotents always the same?

Published on 24 Feb 2014 - 8:52

308

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co-idempotents: algebraic dual of an idempotent element?

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Can an idempotent matrix have complex eigenvalues?

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Non-zero idempotent element is not nilpotent

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Showing that the only idempotents in $R$ are zero and one

Published on 03 Mar 2014 - 21:02

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Spectrum of idempotent element

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Orthogonal idempotents in finite commutative semirings

Published on 25 Mar 2026 - 17:39

List Question

Trick to proving a group has exactly one idempotent element - Fraleigh p. 48 4.31

Rings with zero divisors in which $x^2=x$ implies $x\in\{0,1\}$

Is there a standard name for a set equipped only with an idempotent binary operation?

category theory, idempotent, splitting

uniqueness of split idempotent

Show $\mathbb F_{p}[x]/(x^{p}-1)$ is indecomposable as a representation of $\mathbb Z/ p\mathbb Z$

Idempotents in a ring without unity (rng) and no zero divisors.

Sum of primitive idempotents

Are the two prime ideals containing same idempotents always the same?

co-idempotents: algebraic dual of an idempotent element?

Can an idempotent matrix have complex eigenvalues?

Non-zero idempotent element is not nilpotent

Showing that the only idempotents in $R$ are zero and one

Spectrum of idempotent element

Orthogonal idempotents in finite commutative semirings

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