Universal field equations for metric-affine theories of gravity
V. Tapia, M. Ujevic
Abstract
We show that almost all metric--affine theories of gravity yield Einstein equations with a non--null cosmological constant Λ. Under certain circumstances and for any dimension, it is also possible to incorporate a Weyl vector field Wμ 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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