304 citations · 2.8k across the 107 of their papers we have counts for
42 papers · 1 filter
Interpretation of bulk viscosity as the generalized Chaplygin gas
Marek Szydlowski, Adam Krawiec
The cosmological observations suggest that the presently accelerating universe should be filled by an exotic form of matter, violating the strong energy condition, of unknown natur…
Bifurcations in Ratra-Peebles quintessence models and their extensions
Franciszek Humieja, Marek Szydlowski
We have used the dynamical system approach in order to investigate the dynamics of cosmological models of the flat Universe with a non-minimally coupled canonical and phantom scala…
From quantum unstable systems to the decaying dark energy: Cosmological implications
Aleksander Stachowski, Marek Szydlowski, Krzysztof Urbanowski
We consider a cosmology with decaying metastable dark energy and assume that a decay process of this metastable dark energy is a quantum decay process. Such an assumption implies a…
Polynomial Palatini cosmology -- dynamical system approach
Marek Szydlowski, Aleksander Stachowski
We investigate cosmological dynamics based on gravity in the Palatini formulation. In this study we use the dynamical system methods. We show that the evolution of the Fried…
Simple cosmological model with inflation and late times acceleration
Marek Szydlowski, Aleksander Stachowski
In the framework of polynomial Palatini cosmology, we investigate a simple cosmological homogeneous and isotropic model with matter in the Einstein frame. We show that in this mode…
Emergence of dynamical dark energy from polynomial theory in Palatini formalism
Marek Szydlowski, Aleksander Stachowski, Andrzej Borowiec
We consider FRW cosmology in modified framework. The Palatini approach reduces its dynamics to the simple generalization of Friedmann equation. Thus we study t…