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The Campanelli-Lousto and veiled spacetimes
Luciano Vanzo, Sergio Zerbini, Valerio Faraoni
The Campanelli-Lousto solutions of Brans-Dicke theory, usually reported as black holes are reconsidered and shown to describe, according to the values of a parameter, wormholes or…
Topological Static Spherically Symmetric vacuum Solutions in Gravity
Ratbay Myrzakulov, Lorenzo Sebastiani, Sergio Zerbini
The Lagrangian derivation of the Equations of Motion for topological static spherically symmetric metrics in -modified gravity is presented and the related soluti…
Topological electro-vacuum solutions in extended gravity
Guido Cognola, Emilio Elizalde, Lorenzo Sebastiani +1
Spherically symmetric static topological black hole solutions associated with some extended higher order gravitational models in the presence of a Maxwell-field are derived by mean…
One-loop F(R,P,Q) gravity in de Sitter universe
Guido Cognola, Sergio Zerbini
Motivated by the dark energy issue, the one-loop quantization approach for a class of relativistic higher order theories is discussed in some detail. A specific F(R,P,Q) gravity mo…