null matrix
zero matrix
singular matrix
nonsingular matrix
diagonal matrix
sparsing
eigenvalue
eigenvalue of a matrix
eigenvalue of a square matrix
characteristic root of a square matrix
row-reduced
bidiagonal
unitriangular
stochastic matrix
elliptope
root
positive definite
direct sum
minimal polynomial
nilsequence
domain
identically zero
defective matrix
division algebra
nil-
nothingth
nullary
purely imaginary
preconditioner
skew-symmetric
unitary
copositive
de Bruijn torus
Dirac delta function
bimatrix
AAK theory
singular
negative
quasipositive
QR decomposition
non-zero
perimatrix
elementwise
stoquastic
diagonalisation
positive
diagonalization
left nullspace
zero tensor
duck egg