Equation Icon  [ ] -1 2 3 2 ^X = [] ret - 4pGV sii + W^ij@ijV + 2Vi@t@iV + V @tV + 2(@tV ) - 2@iVj@jVi , [ 3 ] R^i = [] -re1t - 4pG(V si- Vis)- 2@kV @iVk- -@tV @iV , (118) 2 -1 W^ij = [] ret [-4pG(sij - dijskk) - @iV @jV ].