A note on additive results for the Drazin inverse
Yimin Wei, Chunyuan Deng · Linear and Multilinear Algebra · 2011
For two square matrices that commute, we present some additive results for the Drazin inverse. We also give the application to relative perturbation of eigenvalues when the perturbed matrix commutes with the original matrix and perturbation bounds of the Drazin inverse.