364 citations · 2.1k across the 41 of their papers we have counts for
8 papers · 1 filter
Dark energy-matter equivalence by the evolution of cosmic equation of state
Anna Chiara Alfano, Carlo Cafaro, Salvatore Capozziello +1
We consider a model-independent approach to constrain the equivalence redshift, , at which dark energy and the total matter (cold dark matter and baryonic) equate their mag…
Thermodynamic parametrization of dark energy
Salvatore Capozziello, Rocco D'Agostino, Orlando Luongo
We propose a model-independent parametrization of dark energy motivated by thermodynamics. To this aim, we consider Padé polynomials to reconstruct the form of deceleration paramet…
Cosmological viability of a double field unified model from warm inflation
Rocco D'Agostino, Orlando Luongo
In this paper, we investigate the cosmological viability of a double scalar field model motivated by warm inflation. To this end, we first set up the theoretical framework in which…
Model independent reconstruction of cosmological accelerated-decelerated phase
Salvatore Capozziello, Peter K. S. Dunsby, Orlando Luongo
We propose two model independent methods to obtain constraints on the transition and equivalence redshifts , . In particular, we consider as the onset of c…
High-redshift cosmography: auxiliary variables versus Padé polynomials
Salvatore Capozziello, Rocco D'Agostino, Orlando Luongo
Cosmography becomes non-predictive when cosmic data span beyond the red shift limit . This leads to a \emph{strong convergence issue} that jeopardizes its viability. In…
Cosmographic analysis with Chebyshev polynomials
Salvatore Capozziello, Rocco D'Agostino, Orlando Luongo
The limits of standard cosmography are here revised addressing the problem of error propagation during statistical analyses. To do so, we propose the use of Chebyshev polynomials t…
Cosmographic transition redshift in gravity
Salvatore Capozziello, Orlando Luongo
We propose a strategy to infer the transition redshift , which characterizes the passage through the universe decelerated to accelerated phases, in the framework gra…
Cosmographic applications of Gamma Ray Bursts
Luca Izzo, Orlando Luongo, Salvatore Capozziello
In this work we present some applications about the use of the so-called Cosmography with GRBs. In particular, we try to calibrate the Amati relation by using the luminosity distan…