

On Exponential Operators
Abstract
We study eξ(A+B) under several conditions between A and B with their commutator, which leads to the factorizations of Fujiwara, Beauregard and García-Arévalo.
We study eξ(A+B) under several conditions between A and B with their commutator, which leads to the factorizations of Fujiwara, Beauregard and García-Arévalo.