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On the Stability of a class of Modified Gravitational Models | | Guido Cognola
; Monica Gastaldi
; Sergio Zerbini
; | | Date: |
25 Jan 2007 | | Abstract: | Motivated by the dark energy issue, a minisuperspace approach to the stability for modified gravitational models in a four dimensional cosmological setting are investigated. Specifically, after revisiting the $f(R)$ case, $R$ being the Ricci curvature, we present a stability condition around a de Sitter solution valid for modified gravitational models of generalized Gauss-Bonnet type $F(R,G)$, $G$ being the Gauss-Bonnet invariant. | | Source: | arXiv, gr-qc/0701138 | | Services: | Forum | Review | PDF | Favorites | |
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