1,630
edits
(clean up, typos fixed: , → , (2) using AWB) 
(see also) 

Clearly this pseudotensor for gravitational stressenergy is constructed exclusively from the metric tensor and its first derivatives. Consequently it vanishes at any event when the coordinate system is chosen to make the first derivatives of the metric vanish because each term in the pseudotensor is quadratic in the first derivatives of the metric. However it is not symmetric, and is therefore not suitable for basing a definition of angular momentum on.
==See also==
*[[Bel–Robinson tensor]]
*[[Cooperstock's energylocalization hypothesis]]
==Notes==
