Nonlinear Lagrangians of the Ricci type
General Relativity and Quantum Cosmology
2007-05-23 v1 Mathematical Physics
math.MP
Abstract
The Euler-Lagrange equations for some class of gravitational actions are calculated by means of Palatini principle. Polynomial structures with Einstein metrics appear among extremals of this variational problem.
Keywords
Cite
@article{arxiv.gr-qc/9906043,
title = {Nonlinear Lagrangians of the Ricci type},
author = {Andrzej Borowiec},
journal= {arXiv preprint arXiv:gr-qc/9906043},
year = {2007}
}
Comments
8 pages in LaTeX, to appear in Reports on Mathematical Physics