New results on condensed Cramer's rule for the general solution to some restricted quaternion matrix equations
The authors consider the condensed Cramer's rule for the general solution, the least squares solution and the least norm solution of the first two Penrose's equations \[ AXA=A,XAX = X, \] where \(A\) is an \(m \times n\) matrix over the quaternions algebra.
scientific article; zbMATH DE number 6692489
scientific article