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arXiv · 1902.08820

Variations of Infinite Derivative Modified Gravity

Ivan Dimitrijevic·Branko Dragovich·Zoran Rakic·Jelena Stankovic
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Abstract

We consider nonlocal modified Einstein gravity without matter, where nonlocal term has the form $P(R) F(\Box) Q(R)$. For this model, in this paper we give the derivation of the equations of motion in detail. This is not an easy task and presented derivation should be useful to a researcher who wants to investigate nonlocal gravity. Also, we present the second variation of the related Einstein-Hilbert modified action and basics of gravity perturbations.

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Ivan Dimitrijevic, Branko Dragovich, Zoran Rakic, Jelena Stankovic. 2019-02-23. Variations of Infinite Derivative Modified Gravity. https://doi.org/10.1007/978-981-13-2715-5_5

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