Alternative Lagrangians for Einstein Metrics
General Relativity and Quantum Cosmology
2007-05-23 v2
Abstract
We shall use the variational decomposition technique in order to calculate equations of motion and Noether energy-momentum complex for some classes of non-linear gravitational Lagrangians within the first-order (Palatini) formalism. In particular, a complex space-time appears as a solution of our variational problem.
Cite
@article{arxiv.gr-qc/9806116,
title = {Alternative Lagrangians for Einstein Metrics},
author = {A. Borowiec and M. Francaviglia},
journal= {arXiv preprint arXiv:gr-qc/9806116},
year = {2007}
}
Comments
9 pages in LaTeX (sprocl.sty). Extended version; misprints removed, comments and references added. To appear in Proc. Int. Sem. Math. Cosmol., Potsdam, 1998, M. Rainer and H.-J. Schmidt (eds.), WSPC Singapore