The Legendre transformation method, applied in 1987 to deal with purely metric grav- itational Lagrangians with nonlinear dependence on the Ricci tensor, is extended to metric-affine models and is shown to provide a concise and insightful comparison of the dynamical content of the two variational frameworks.

Nonlinear Gravitational Lagrangians revisited

MAGNANO, Guido
2016

Abstract

The Legendre transformation method, applied in 1987 to deal with purely metric grav- itational Lagrangians with nonlinear dependence on the Ricci tensor, is extended to metric-affine models and is shown to provide a concise and insightful comparison of the dynamical content of the two variational frameworks.
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http://www.worldscinet.com/ijgmmp/ijgmmp.shtml
https://arxiv.org/abs/1601.02235
equivalence of theories of gravitation; extended gravity; Nonlinear gravity; Palatini theories; Physics and Astronomy (miscellaneous)
Magnano, Guido
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1621837
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