List questions from idempotents

Published on 05 Dec 2014 - 15:56

809

Views

Find idempotents in $\Bbb Q[x]/\langle x^2 - 1\rangle$

Published on 12 Dec 2014 - 21:47

978

Views

Is every matrix $A$ such that $A^k=I$ diagonalizable?

Published on 15 Dec 2014 - 22:09

242

Views

Is $\mathrm{Hom}(eR, M) \cong Me$ as right $eRe$-modules?

Published on 28 Dec 2014 - 17:05

22

Views

Show $(\mathcal S\times\mathcal S,)$ with $|\mathcal S|\ge 2$ & $(a,b)(c,d) = (c,b)$ is a semigroup without a one & $(a,b)^2=(a,b)\forall(a,b)$

Published on 22 Oct 2019 - 14:01

89

Views

Prove $\mbox{rank} (A − B) = \mbox{rank} (A − AB) + \mbox{rank}(B − AB)$, if $A^2 = A$ and $B^2 = B$

Published on 23 Oct 2019 - 19:44

67

Views

homogeneous idempotent element has degree $e$

Published on 25 Mar 2026 - 18:24

94

Views

Show If T is idempotent, then there exists a basis {v1,...,vn} for V such that Tvi = vi for i = 1,...,ρ(T), and Tvi = 0 for i =ρ(T)+1,...,n.

Published on 02 Nov 2019 - 17:49

1.6k

Views

Why an idempotent matrix has only eigenvalue equal to 0 or 1

Published on 10 Nov 2019 - 7:46

55

Views

homology of rings with enough idempotents

Published on 13 Nov 2019 - 7:21

93

Views

$\mathrm{Hom}_{eAe}(A,N)\cong \mathrm{Hom}_{eAe}(Ae,N)$

Published on 15 Nov 2019 - 15:56

722

Views

What is difference between idempotent magma and unital magma?

Published on 23 Feb 2026 - 4:55

57

Views

an equivalent condition for a projection on a Hilbert space

Published on 26 Nov 2019 - 1:22

208

Views

If there exists a positive integer $n$ such that any element $x$ of a ring $R$ satisfies $x^{4^n+2} = x$, then every element $x$ in $R$ is idempotent

Published on 28 Nov 2019 - 14:30

78

Views

Show that i is idempotent

Published on 29 Nov 2019 - 16:16

List Question

general idempotent matrix possible values of the determinant

Find idempotents in $\Bbb Q[x]/\langle x^2 - 1\rangle$

Is every matrix $A$ such that $A^k=I$ diagonalizable?

Is $\mathrm{Hom}(eR, M) \cong Me$ as right $eRe$-modules?

Show $(\mathcal S\times\mathcal S,)$ with $|\mathcal S|\ge 2$ & $(a,b)(c,d) = (c,b)$ is a semigroup without a one & $(a,b)^2=(a,b)\forall(a,b)$

Prove $\mbox{rank} (A − B) = \mbox{rank} (A − AB) + \mbox{rank}(B − AB)$, if $A^2 = A$ and $B^2 = B$

homogeneous idempotent element has degree $e$

Show If T is idempotent, then there exists a basis {v1,...,vn} for V such that Tvi = vi for i = 1,...,ρ(T), and Tvi = 0 for i =ρ(T)+1,...,n.

Why an idempotent matrix has only eigenvalue equal to 0 or 1

homology of rings with enough idempotents

$\mathrm{Hom}_{eAe}(A,N)\cong \mathrm{Hom}_{eAe}(Ae,N)$

What is difference between idempotent magma and unital magma?

an equivalent condition for a projection on a Hilbert space

If there exists a positive integer $n$ such that any element $x$ of a ring $R$ satisfies $x^{4^n+2} = x$, then every element $x$ in $R$ is idempotent

Show that i is idempotent

Trending Questions

Popular # Hahtags

Popular Questions