If g = 0 write g1 = g and g2 = g1 n2−1 for n > 1 and n×n matrix G = (g1 g2 ... g2) Clearly |Gc| = 0 where Gc is the coefficient matrix of the system AXB = P so that it has infinitely many solutions A and B.
If g = 0 write g1 = g and g2 = g1n2−1 for n > 1 and n×n matrix G = (g1 g2 ... g2)Clearly |Gc| = 0 where Gc is the coefficient matrix of the system AXB = Pso that it has infinitely many solutions A and B.