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