50 citations · 262 across the 15 of their papers we have counts for
5 papers · 2 filters
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…
Is a pole type singularity an alternative to inflation?
Marek Szydlowski, Aleksander Stachowski
In this paper, we apply a method of reducing the dynamics of FRW cosmological models with the barotropic form of the equation of state to the dynamical system of the Newtonian type…
Quantum mechanical look at the radioactive-like decay of metastable dark energy
Marek Szydlowski, Aleksander Stachowski, Krzysztof Urbanowski
We derive the Shafieloo, Hazra, Sahni and Starobinsky (SHSS) phenomenological formula for the radioactive-like decay of metastable dark energy directly from the quantum mechanics p…