Nikodem J Popławski 2007 Class. Quantum Grav. 24 3013 doi:10.1088/0264-9381/24/11/014
Nikodem J Popławski
Show affiliationsWe derive the expression for the snap parameter in f(R) gravity. We use the Palatini variational principle to obtain the field equations and regard the Einstein conformal frame as physical. We predict the present-day value of the snap parameter for the particular case f(R) = R − const/R, which is the simplest f(R) model explaining the current acceleration of the universe.
04.50.-h Higher-dimensional gravity and other theories of gravity
95.30.Sf Relativity and gravitation
04.20.Fy Canonical formalism, Lagrangians, and variational principles
83C05 Einstein's equations (general structure, canonical formalism, Cauchy problems)
83D05 Relativistic gravitational theories other than Einstein's, including asymmetric field theories
41A58 Series expansions (e.g. Taylor, Lidstone series, but not Fourier series)
Issue 11 (7 June 2007)
Received 1 December 2006, in final form 10 April 2007
Published 22 May 2007
Nikodem J Popławski 2007 Class. Quantum Grav. 24 3013
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