EDB — 1MN

Exercises

1. [1MN] If \(A,B\) commute, then

   \[ A\exp (B)=\exp (B)A~ ~ ~ ,~ ~ ~ \exp (A+B)=\exp (A)\exp (B)~ . \]

   In particular \(\exp (A)\) is always invertible and its inverse is \(\exp (-A)\).

   Solution 1

   [1MP]↺↻