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Eigenvalues of matrix $A$ $n \times n$, knowing that $A^2+A-6I_n=O_n$

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#linear-algebra #eigenvalues-eigenvectors #matrix-equations
689
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Unitary matrix that commutes with a diagonal matrix

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#matrices #matrix-equations
110
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For any unitary matrix $U$ and integer $k>0$, there exists a polynomial $p(t)$, such that the matrix $B=p(U)$ satisfies the equation $B^k=U.$

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#linear-algebra #matrices #matrix-equations #matrix-decomposition
861
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How to find general solution for this matrix

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#linear-algebra #matrices #matrix-equations
204
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Matrix with integer coordinates

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#recurrence-relations #contest-math #matrix-equations
374
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Conversion of Nonhomogeneous differential equations system into nonhomogeneous 2nd order differential equation

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#ordinary-differential-equations #self-learning #matrix-equations
524
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Find the inverse of a matrix by using the inverse of another one, which only differs in one row/column

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#linear-algebra #matrices #algorithms #matrix-equations #matrix-decomposition
448
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Matrix transformation verification

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#linear-algebra #linear-transformations #matrix-equations
316
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$AB=0$ solving for matrices in MatLab

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#matrices #matlab #matrix-equations
52
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Conditions for a certain parametric matrix to be positive definite

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#vectors #matrix-equations #positive-definite
184
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Effect of multiplying by regular matrix on number of solutions of linear equations

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#linear-algebra #matrices #matrix-equations
30
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Help understanding matrix

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#matrices #matrix-equations
57
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Tensor operations

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#matrix-equations #tensors #matrix-calculus
373
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Finding a cubic polynomial with Cayley-Hamilton Theorem

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#linear-algebra #matrices #matrix-equations #cayley-hamilton
745
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Give two specific examples of a non-zero matrix X such that: AX = XA.

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#linear-algebra #matrices #matrix-equations

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