Let Hxx, Hxz, Hzx and Hzz be defined as follows.
The math problem we address is:
(HGRAIL)
Let A, B1, B2, C1, C2 be matrices of compatible size be given. Solve Hxx = 0, Hxz = 0, Hzx = 0, and Hzz = 0 for a, b, c and for E11, E12, E21 and E22. When can they be solved? If these equations can be solved, find formulas for the solution. |