163 citations · 304 across the 8 of their papers we have counts for
8 papers
Nearly Starobinsky inflation from modified gravity
L. Sebastiani, G. Cognola, R. Myrzakulov +2
We study inflation induced by (power-low) scalar curvature corrections to General Relativity. The class of inflationary scalar potentials , general paramete…
Black hole and de Sitter solutions in a covariant renormalizable field theory of gravity
G. Cognola, E. Elizalde, L. Sebastiani +1
It is shown that Schwarzschild black hole and de Sitter solutions exist as exact solutions of a recently proposed relativistic covariant formulation of (power-counting) renormaliza…
Stability in Generalized Modified Gravity
Guido Cognola, Lorenzo Sebastiani, Sergio Zerbini
The stability issue of generalized modified gravitational models is discussed with particular emphasis to de Sitter solutions. Two approaches are briefly presented.
Vacuum energy fluctuations, the induced cosmological constant and cosmological reconstruction in non-minimal modified gravity models
G. Cognola, E. Elizalde, S. Nojiri +1
The one-loop effective action for non-minimal scalar modified gravity on de Sitter background with a constant scalar field is found. The corresponding induced cosmological constant…
One-loop Quantum Corrections to the Entropy for an Extremal Reissner-Nordström Black Hole
G. Cognola, L. Vanzo, S. Zerbini
The first quantum corrections to the entropy for an eternal 4-dimensional extremal Reissner-Nordström black hole is investigated at one-loop level, in the large mass limit of the b…
Interaction of Low - Energy Induced Gravity with Quantized Matter and Phase Transition Induced by Curvature
I. L. Shapiro, G. Cognola
At high energy scale the only quantum effect of any asymptotic free and asymptotically conformal invariant GUT is the trace anomaly of the energy-momentum tensor. Anomaly generates…