Recovering the effective cosmological constant in extended gravity theories

dc.creatorCapozziello, S.
dc.creatorde Ritis, R.
dc.creatorMarino, A. A.
dc.date1998-04-22
dc.date.accessioned2026-07-07T10:31:58Z
dc.date.available2026-07-07T10:31:58Z
dc.descriptionIn the framework of extended gravity theories, we discuss the meaning of a time dependent "cosmological constant" and give a set of conditions to recover asymptotic de Sitter behaviour for a class of cosmological models independently of initial data. To this purpose we introduce a time-dependent (effective) quantity which asymptotically becomes the true cosmological constant. We will deal with scalar-tensor, fourth and higher than fourth-order theories.
dc.description24 pages, Latex, submitted to Gen.Rel.and Grav
dc.identifierhttps://arxiv.org/abs/gr-qc/9804053
dc.identifierhttp://arxiv.org/abs/gr-qc/9804053
dc.identifierGen.Rel.Grav.30:1247-1272,1998
dc.identifierdoi:10.1023/A:1026651129626
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178600
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleRecovering the effective cosmological constant in extended gravity theories
dc.typetext

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