Trace of commuting matrices is maximal
38850
How to show Von Neumann Trace inequality $ \text{Tr}(AB) \leq \sum_{i=1}^n \sigma_{A,i}\sigma_{B,i} $?
117737
Why is $\mathfrak{sl}(n)$ the algebra of traceless matrices?
2874
Commuting in Matrix Exponential
47829
Prove that $\operatorname{trace}(A^TA) = 0\ \iff\ A = 0$.
40154
Finding the dimension of real symmetric matrices with trace zero
79276
Find $\min(\operatorname{trace}(AA^T))$ for invertible $A_{n\times n}$
86826
Almost a Vandermonde matrix
133758
Traces of powers of a matrix $A$ over an algebra are zero implies $A$ nilpotent.
104575
Formula for determinant of block matrix with commuting blocks
44371
Finding trace and determinant of linear operator
123410
Find dimension of Commuting matrices over field of prime elements
51889
How to "find" this Lie algebra: proof that $\mathfrak{sl}$ is trace zero matrices
121987
Direct proof that nilpotent matrix has zero trace
85193
direct product commutes with tensor product?
133482
$AB-BA$ is a nilpotent matrix if it commutes with $A$
25357
Matrices $B$ that commute with every matrix commuting with $A$
11566
Similar matrices and minimal polynomial