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  The second variation of the Einstein-Hilbert action

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Could anyone please show me how to derive it?

asked Sep 12, 2019 in Theoretical Physics by anonymous [ no revision ]

Do you know how to derive the first variation of the Hilbert action? Do you know how to derive the second variation of the action of, say, a Newtonian particle in a potential?

commented Sep 13, 2019 by Void (1,645 points) [ no revision ]

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