Universal field equations for metric-affine theories of gravity

Details Universal field equations for metric-affine theories of gravity Universal field equations for metric-affine theories of gravity

2006-05-25

arxiv.org/abs/gr-qc/0605132v2

Class.Quant.Grav.15:3719-3729,1998

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages. This is a copy of the published paper. We are posting it here because of the increasing interest in f(R) theories of

Scientific paper

10.1088/0264-9381/15/11/028

We show that almost all metric--affine theories of gravity yield Einstein equations with a non--null cosmological constant $\Lambda$. Under certain circumstances and for any dimension, it is also possible to incorporate a Weyl vector field $W_\mu$ and therefore the presence of an anisotropy. The viability of these field equations is discussed in view of recent astrophysical observations.

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