Universal field equations for metric-affine theories of gravity

Tapia, V.; Ujevic, M.

doi:10.1088/0264-9381/15/11/028

Universal field equations for metric-affine theories of gravity

V. Tapia
(
- Colombia, U. Natl.
)
,
M. Ujevic
(
- Campinas State U., IMECC
)

1998

13 pages

Published in:

Class.Quant.Grav. 15 (1998) 3719-3729

e-Print:

gr-qc/0605132 [gr-qc]

DOI:

10.1088/0264-9381/15/11/028

View in:

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Abstract: (arXiv)

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.

Note:

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 gravity Journal-ref: Class. Quantum Grav. 15 (1998) 3719-3729

gravitation
Einstein equation: universality

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