19 citations · 46 across the 5 of their papers we have counts for
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gr-qc2000
Fourth-Order Ricci Gravity
A. Borowiec, M. Francaviglia, V. I. Smirichinski
The Euler-Lagrange equations of motion for the most general Ricci type gravitational Lagrangians are derived by means of a purely metric formalism.
gr-qc1999
Nonlinear Lagrangians of the Ricci type
Andrzej Borowiec
The Euler-Lagrange equations for some class of gravitational actions are calculated by means of Palatini principle. Polynomial structures with Einstein metrics appear among extrema…
gr-qc1998
Alternative Lagrangians for Einstein Metrics
A. Borowiec, M. Francaviglia
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 Lagr…