The Drazin Inverse of a Morphism with a Sequence of (epic, monic) Factorizations
Xiao Liu · 东北数学：英文版 · 2000
We study the Drazin inverse of a morphism with a sequence of (epic, monic) factorizations and give a necessary and sufficient condition for the Drazin inverse to exist. We have extended the result about the Drazin inverse of a matrix over the complex field.