Characteristic polynomial of a complex 4 by 4 matrix
57296
A non-diagonal $4\times4$ matrix such that $A^3=A^2=0$ and its rank is $2$
40154
Finding the dimension of real symmetric matrices with trace zero
126402
How to factor a fourth degree polynomial
52083
Vandermonde determinant for order 4
127304
Understanding the algebra of polynomials on a linear space
88712
Determining a matrix from its characteristic polynomial
157109
Finding the Dimension of a Matrix Polynomial: $W$ = { $p(B)$ : $p$ is a polynomial with real coefficients}
134442
Can a matrix in $\mathbb{R}$ have a minimal polynomial that has coefficients in $\mathbb{C}$?
45658
Determinant of a special $n\times n$ matrix
116820
If two matrices have the same characteristic polynomials, determinant and trace, are they similar?
2271
Determinant of a rank $1$ update of a scalar matrix, or characteristic polynomial of a rank $1$ matrix
131366
Cyclotomic polynomial
18282
Finding the minimal polynomial, the eigenvalues, and the characteristic polynomial of $T(A)=A+A^t$
84400
Build a Companion Matrix of a Polynomial?
89553
proof that every finite matrix has an annihilating polynomial
78298
On the nilpotence of the matrix $AB-BA$
38130
Complex structure on $\mathbb{C}\mathbb{P}^2\# \dots \# \mathbb{C}\mathbb{P}^2$