The WG inverse and its application in a constrained matrix approximation problem
Hongxing Wang, Ju Gao, Xiaoji Liu · ScienceAsia · 2023
We study the application of WG inverse to a constrained matrix approximation problem to deduce the unique solution of the problem, and get characterizations of WG inverse by applying matrix decompositions.Moreover, we get one Gauss-Jordan elimination method for the WG inverse.