equation icon  Hab'(x, x') = V ab'(x,x'), (343) 1 1 G aSb'(x, x') = -U ab'(x,x')d(s) - -V ab'(x,x')h(s), (344) 2 2 [ ] a ' 1- a ' a ' 1- GR b'(x, x) = 2U b'(x,x )[d+(s)- d-(s)] + V b'(x,x ) h+(- s) + 2h(s) . (345)