Commuting operators
= Commuting operators
Two <linear operators> $A$ and $B$ commute when $AB=BA$. Their <matrix exponentials> then satisfy $e^{A+B}=e^Ae^B=e^Be^A$.
= Commuting operators
Two <linear operators> $A$ and $B$ commute when $AB=BA$. Their <matrix exponentials> then satisfy $e^{A+B}=e^Ae^B=e^Be^A$.