On the Generalized Drazin inverse of the Sum in a Banach Algebra
Dijana Mosić, Daochang Zhang · Quaestiones Mathematicae · 2018
The objective of this paper is to study the existence of the generalized Drazin inverse of the sum a + b of two generalized Drazin invertible elements in a Banach algebra and present explicit expressions for the generalized Drazin inverse of this sum, under new conditions.