95 citations · 362 across the 18 of their papers we have counts for
18 papers
Are we survivors of the sudden past singularity?
Adam Balcerzak, Tomasz Denkiewicz, Mateusz Lisaj
In this paper, we investigate the viability of cosmological models featuring a type II singularity that occurs during the past evolution of the Universe. We construct a scenario in…
Barrow nearly-extensive Gibbs-like entropy favoured by the full dynamical and geometrical data set in cosmology
Tomasz Denkiewicz, Vincenzo Salzano, Mariusz P. Dabrowski
We apply the full set of most update dynamical and geometrical data in cosmology to the nonextensive Barrow entropic holographic dark energy. We show that the data point towards an…
Varying constants driven baryogenesis
Katarzyna Leszczynska, Mariusz P. Dabrowski, Tomasz Denkiewicz
We study the spontaneous baryogenesis scenario in the early universe for three different frameworks of varying constants theories. We replace the constants by dynamical scalar fiel…
Scale-dependent perturbations finally detectable by future galaxy surveys and their contribution to cosmological model selection
Tomasz Denkiewicz, Vincenzo Salzano
By means of the present geometrical and dynamical observational data, it is very hard to establish, from a statistical perspective, a clear preference among the vast majority of th…
Dynamical dark energy models with singularities in the view of the forthcoming results of the growth observations
Tomasz Denkiewicz
The question of the origin of the recent acceleration of the Universes expansion is still pending. What is making the situation even worst, it is impossible to distinguish the vast…
Dark energy and dark matter perturbations in singular universes
Tomasz Denkiewicz
We discuss the evolution of density perturbations of dark matter and dark energy in cosmological models which admit future singularities in a finite time. Up to now geometrical tes…