Similar matrices over $\mathbb{C}$ and $\mathbb{R}$.
12213
Similarity of real matrices over $\mathbb{C}$
6101
Are $\mathbb{C} \otimes _\mathbb{R} \mathbb{C}$ and $\mathbb{C} \otimes _\mathbb{C} \mathbb{C}$ isomorphic as $\mathbb{R}$-vector spaces?
11566
Similar matrices and minimal polynomial
108850
Complex matrix that commutes with another complex matrix.
35278
Does equality of characteristic polynomials guarantee equivalence of matrices?
25357
Matrices $B$ that commute with every matrix commuting with $A$
18145
Diagonalizable matrices with complex values are dense in set of $n\times n$ complex matrices.
52882
find nonsingular matrices $B$ and $C$ that satisfy $BC+ CB= 0$
59202
What is the angle between those two matrices over $\mathbb{C}$?
27767
Are two matrices similar iff they have the same Jordan Canonical form?
145719
Similarity between $A$ and $B (2\times 2)$.
77667
A and B is similar ⇒ $A^T$ is similar to $B^T$.
63920
Does the fact that matrices $A, B$ are similar imply that $A+cI$ is similar to $B+cI$?
23372
Show that for an invertible matrix, the images of a set of vectors spanning the space also form a spanning set
120937
Matrices that commute with all matrices
136389
Finding an isomorphic subring of matrices
6659
Approximating commuting matrices by commuting diagonalizable matrices