Geroch energy

Geroch energy

The Geroch energy or Geroch mass is one of the possible definitions of mass in general relativity. It can be derived from the Hawking energy, itself a measure of the bending of ingoing and outgoing rays of light that are orthogonal to a 2-sphere surrounding the region of space whose mass is to be defined, by leaving out certain (positive) terms related to the sphere's external and internal curvature.

ee also

*Mass in general relativity

References

*Section 6.2 in Citation
last=Szabados
first=László B.
title=Quasi-Local Energy-Momentum and Angular Momentum in GR
journal=Living Rev. Relativity
volume=7
year=2004
url=http://www.livingreviews.org/lrr-2004-4
accessdate=2007-08-23


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