Displacement structure of group inverses
Yimin Wei, Michael K. Ng · Numerical Linear Algebra with Applications · 2004
Abstract A matrix A is said to possess an UV‐displacement structure if rank(AU – VA) is small compared with the rank of A. Estimates for the rank AgV – UAg are presented, where Ag is the group inverse of A. Copyright © 2004 John Wiley & Sons, Ltd.