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Is there a reduced ring with exactly $3$ idempotents?

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#abstract-algebra #ring-theory #idempotents
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Can a reduced ring have (# idempotents) $\in 3 \mathbb{Z}$?

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#abstract-algebra #ring-theory #idempotents
41
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Semilattice of idempotent

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#semigroups #idempotents #inverse-semigroups
407
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zero Jacobson Radical

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#ring-theory #ideals #maximal-and-prime-ideals #idempotents
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Proving that $H_1-H_0$ is idempotent

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#linear-algebra #matrices #statistics #idempotents
105
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Are idempotent maps in Linear Algebra only so under a specific equivalence relation

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#linear-algebra #operator-theory #idempotents
313
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Curious Case of Idempotent Matrices - Seeking a Generalisation

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#linear-algebra #matrices #idempotents
344
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Idempotent, commutative and invertible

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#abstract-algebra #computer-science #automata #semigroups #idempotents
75
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Monoid that is idempotent induces partial ordering

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#order-theory #monoid #idempotents
464
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Karoubi envelope / idempotent completion of $R-Mod$

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#abstract-algebra #ring-theory #commutative-algebra #category-theory #idempotents
226
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Idempotents and Direct Sums with Modules

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#abstract-algebra #ring-theory #modules #idempotents
153
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Zero Ideal is Indecomposable as a Finite Intersection of Primary Ideals on an Infinite Ring of Idempotents

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#ring-theory #commutative-algebra #maximal-and-prime-ideals #idempotents #primary-decomposition
203
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Models of a certain (weird) equational theory

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#abstract-algebra #binary-operations #universal-algebra #idempotents
30
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Do “zero-divisor-closures” of a commutative ring always contain idempotents?

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#commutative-algebra #idempotents
108
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Adjoint action on idempotents in Clifford algebras

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#ring-theory #group-actions #idempotents #clifford-algebras

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