71 citations · 351 across the 26 of their papers we have counts for
3 papers · 1 filter
Transition redshift from the V-reconstruction method
Wojciech Czaja, Marek Szydlowski, Adam Krawiec
We show the effectiveness of using the procedure of the potential reconstruction (the V-method) in the estimation of the transition redshift corresponding to switch from decelerati…
Modified Friedmann Cosmologies - theory & observations
Marek Szydlowski, Wojciech Czaja
We investigate a class of Cardassian scenarios of the universe evolution in notions of the qualitative theory of dynamical systems. This theory allows us to analyze all solutions f…
Phantom cosmology as a simple model with dynamical complexity
Marek Szydlowski, Adam Krawiec, Wojciech Czaja
We study the Friedmann-Robertson-Walker model with phantom fields modelled in terms of scalar fields. We apply the Ziglin theory of integrability and find that the flat model is no…