The Reverse Order Law for (T,S,2)-Inverse of a Triple Matrix Product
Gui-Xiang Liu · Journal of Mathematical Research and Exposition · 2003
The (T, S,2)-inverse .AT(2),s of a matrix A is matrix the X satisfying XAX = X,R(X) = T and N(X) = S . This paper deals with the reverse order law for (T,S,2)-inverse of a triple matrix product and proves the necessary and sufficient condition for (ABC)T4(2),S4 = .