Expressions for the Drazin inverse of a modified matrix
Lazar S. Stojković, Dijana Mosić · Filomat · 2018
We present some new expressions for the Drazin inverse of a modified matrix A-CDDB in terms of the Drazin inverse of A and its generalized Shur?s complementD-BADC under weaker conditions. Some results in recent literature are unified and generalized, and most importantly, we obtain new expressions of generalized Sherman-Morrison-Woodbury formula under weaker restrictions.