If 
is an 
square matrix and
is an eigenvalue
of 
, then the union
of the zero vector 
and the set of all eigenvectors
corresponding to eigenvalues 
is known as the eigenspace of 
associated with eigenvalue 
.
Eigenspace
See also
Eigen Decomposition, Eigenvalue, EigenvectorExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Eigenspace." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Eigenspace.html