In: Advanced Math
Consider the linear transformation T: R2x2 -> R2x2 defined by T(A) = AT - A.
Determine the eigenvalues of this linear transformation and their algebraic and geometric multiplicities.
Solution:


Let
be the standard basis for
.





The characteristic equation is 




For 

By 



For 

By



Algebraic Multiplicity of
is 
Geometric Multiplicity of
is 
Algebraic Multiplicity of
is 
Geometric Multiplicity of
is 