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(→Cosmological constant: Bringing into the 21st century  final mod, factors of c, G etc) 

===Cosmological constant===
When the [[LandauLifshitz pseudotensor]] was formulated it was commonly assumed that the [[cosmological constant]],<math>\Lambda \,</math> , was zero. Nowadays [[accelerating universewe don't make that assumption]], and expression needs the addition of a <math>\Lambda \,</math> term, giving:
:<math>
This is necessary for consistency with the [[Einstein field equations]].
