How to show that two matrices have same eigenvalues?
59397
Eigenvalues of $AB$ and $BA$ where $A$ and $B$ are square matrices
135316
A basic question on diagonalizability of a matrix
63753
Eigenvalues of product of two complex matrices
35278
Does equality of characteristic polynomials guarantee equivalence of matrices?
96811
How to find the eigenvalues of a block-diagonal matrix?
45626
How do I calculate the eigenvalues of the positive partial transpose of this two-qubit state?
126064
What are examples of two non-similar invertible matrices with same minimal and characteristic polynomial and same dimension of each eigenspace?
153392
Let $A$ be a $n\times n$ matrix such that $a_{ij}=ij$,find the eigenvalues of the matrix $A$.
26801
Show that orthogonal matrices are diagonalizable
19203
Is the rank of a matrix the same of its transpose? If yes, how can I prove it?
108132
How Do I Compute the Eigenvalues of a Small Matrix?
146046
Are two matrices having the same characteristic and minimal polynomial always similar?
129977
Prove that $\lambda_1^2$, $\lambda_1\lambda_2$ and $\lambda_2^2$ are eigenvalues of matrix $A$
100345
How to find values of a matrix to make it consistent
88349
Are the eigenvalues of $AB$ equal to the eigenvalues of $BA$? (Citation needed!)
62590
Show norm preserving property and determine Eigenvalues
85581
Matrices commute if and only if they share a common basis of eigenvectors?