(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

From Gravitation by Misner, et al. Can anybody who has access to this text show me how to vary this functional from exercise 7.1, and using the principle of least value, derive an identity? The functional is I = [tex]\int[/L d[4][/SUP]]x, where L = -1/(\pi*8*G)*\eta^{[/\alpha\beta](\Phi)[/,\alpha](\Phi)[/,\beta] - \int m (e^\Phi) \delta([/x - z](\tau)) d\tau Vary with respect to \Phi. I apologize in advance for notation. 2. Relevant equations Euler- Lagrange Eq'ns. I know variational methods, but this one perplexes me. 3. The attempt at a solution}

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# Homework Help: Variational Problem in GR

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