Talk:Hawking energy

It would be nice to add the recent results:  — Preceding unsigned comment added by 195.249.127.231 (talk) 10:33, 18 March 2014 (UTC)

Definition of mean curvature
I think it is important to point out that the definition of mean curvature for the Hawking mass should be $$H = g^{ij}h_{ij}$$ where $$h$$ is the second fundamental form of $$\Sigma$$. In the linked Wikipedia article the mean curvature is defined as $$H = \frac{1}{2} g^{ij} h_{ij}$$. Only with the former definiton one obtains that the Hawking mass of a sphere of Radius $$r$$ has Hawking mass equal to $$m$$ in the Schwarzschild metric. Panagiotis Konstantis (talk) 12:04, 13 February 2023 (UTC)