HiMHFmembers,

I was looking up in the books I have but I could not go anywhere.

Consider the higher-order ode

,

which has the matrix form

,

where

and .

The adjoint form of is given by

,

where the coefficients are assumed to be real and sufficiently smooth.

How the matrix form of theadjoint equationcan be derived?

Have any of you met with this in a book/reference?

Thanks.

bkarpuz