i i i i i f = A A f = b b c b b µ v µ, v v, µ uv µ, v v, µ jk µ i i i k f = J f + c b f = J i µ v, v µ µ v, v jk v µ v µ i i i c c c 3 jk jk 0 1-1 k v jk