Matrix transpose $A^TA=0$
61274
If $AA^T$ is the zero matrix, then $A$ is the zero matrix
113072
Index notation Lorentz transfromation matrix
121769
How to find the matrix representation of a linear tranformation
110086
Let $A$ be an $m \times n$ matrix. Show $A^TA$ and $AA^T$ have the same eigenvalues
18670
What is the gradient of $x^T A\, x$ with respect to the matrix $A$?
70807
Find the standard matrix for a linear transformation
148405
Is there a way to automatically transpose a matrix written in Latex?
122580
If N is elementary nilpotent matrix, show that N Transpose is similar to N
140517
Sum of the entries in the matrix $A^3$
3150
Is there an intuitive interpretation of $A^TA$ for a data matrix $A$?
140252
Matrices - Conditions for $AB+BA=0$
83122
What is the fastest way to transpose a matrix in C++?
122202
How does the dot product convert a matrix into a scalar?
76477
Eigenvalues with transpose question.
52928
If $\mathrm{Tr}(A)=0$ then $T=R^{-1}AR$ has all entries on its main diagonal equal to $0$
152665
$A^TA+I$ is always invertible?
50384
A matrix and its transpose have the same set of eigenvalues/other version: $A$ and $A^T$ have the same spectrum