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paper

Consistent Levi Civita truncation uniquely characterizes the Lovelock Lagrangians

arXiv:1012.1692 · doi:10.1016/j.physletb.2011.09.108

Abstract

We define the concept of Levi Civita truncation for a Lagrangian in the Palatini formulation with an arbitrary connection, and show that its consistency uniquely identifies the Lovelock Lagrangians.

10 pages. Title slightly changed to emphasize the result. Matches published version