’s at the boundary at infinity.
Of course the
’s are not numbers or scalars like
; they are tensors. Hence their values at a point will vary with the mesh-system, or frame of reference, we may select. Nevertheless, if we specify our choice of a frame of reference and decide on the values the
’s are to have in this frame, their values in all other frames will be determined automatically. This is, of course, owing to the fact that the