74 citations · 288 across the 9 of their papers we have counts for
11 papers
Pressure gradients, shell crossing singularities and acoustic oscillations - application to inhomogeneous cosmological models
Krzysztof Bolejko, Paul Lasky
Inhomogeneous cosmological models have recently become a very interesting alternative to standard cosmology. This is because these models are able to fit cosmological observations…
Volume averaging in the quasispherical Szekeres model
Krzysztof Bolejko
This paper considers the volume averaging in the quasispherical Szekeres model. The volume averaging became of considerable interest after it was shown that the volume acceleration…
Apparent and average acceleration of the Universe
Krzysztof Bolejko, Lars Andersson
In this paper we consider the relation between the volume deceleration parameter obtained within the Buchert averaging scheme and the deceleration parameter derived from the supern…
Light propagation through large-scale inhomogeneities in the Universe and its impact on cosmological observations
Krzysztof Bolejko
This paper analyses cosmological observations within inhomogeneous and exact solutions of the Einstein equations. In some way the analyses presented here can be freed from assumpti…
The Szekeres Swiss Cheese model and the CMB observations
Krzysztof Bolejko
This paper presents the application of the Szekeres Swiss Cheese model to the analysis of observations of the cosmic microwave background (CMB) radiation. The impact of inhomogeneo…
Can a charged dust ball be sent through the Reissner--Nordström wormhole?
Andrzej Krasiński, Krzysztof Bolejko
In a previous paper we formulated a set of necessary conditions for the spherically symmetric weakly charged dust to avoid Big Bang/Big Crunch, shell crossing and permanent central…