Block representations for the g-Drazin inverse in Banach algebras
Huanyin Chen, Marjan Sheibani · Miskolc mathematical notes/Mathematical notes · 2023
We present new formulas for the g-Drazin inverse of the sum in a Banach algebra.The block representations for the g-Drazin inverse of a 2 × 2 block operator matrix are thereby established.These extend the known results obtained in [3,7].