Write down all the eigenvalues (along with their multiplicities) of the matrix A = (aij ) ∈ Mn(R) where aij = 1 for all 1 ≤ i, j ≤ n.
31029
Characteristic polynomial of a matrix of $1$'s
126337
Eigenvalues in orthogonal matrices
98135
Show that the determinant of $A$ is equal to the product of its eigenvalues
7376
Find $\det(A^{2}+A^{T})$ when eigenvalues are $1,2,3$
104424
If each eigenvalueof $A$ is either $+1$ or $-1$ $ \Rightarrow$ $A$ is similar to ${A^{ - 1}}$
146293
Calculating the eigenvalues of a matrix
50384
A matrix and its transpose have the same set of eigenvalues/other version: $A$ and $A^T$ have the same spectrum
13971
find spectrum matrix A
52208
Show that a matrix $A$ is singular if and only if $0$ is an eigenvalue.
29788
Eigenvalues of a matrix whose square equals its transpose
39256
Finding $\det(I+A^{100})$ where $A\in M_3(R)$ and eigenvalues of $A$ are $\{-1,0,1\}$
4952
Let $A$ be a diagonalizable matrix and $\lambda$ be an eigenvalue of A. Prove that rank($\lambda I - A$) = rank(($\lambda I - A)^2$).
63753
Eigenvalues of product of two complex matrices
86940
Proving an inequality in Eigenvalues of a matrix
30866
Relation between rank and number of distinct eigenvalues of a matrix
105988
Find the uniform lower bound of the smallest eigenvalue of a certain matrix
27778
Eigenvalues of a real skew symmetric matrix