We know that the solutions to the uniform case, as the eigenfunctions of a Hermitian matrix operation, are orthogonal. This means that taking the inner product of any one of these solutions <math> f_l </math> with any other solution <math> f_m </math> is the equivalent of the kronecker delta <math> \delta_{lm}</math>. | We know that the solutions to the uniform case, as the eigenfunctions of a Hermitian matrix operation, are orthogonal. This means that taking the inner product of any one of these solutions <math> f_l </math> with any other solution <math> f_m </math> is the equivalent of the kronecker delta <math> \delta_{lm}</math>. |