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Showing 1 to 4 of 4 for “"Relativistic Cosmology"”.
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Dynamical studies in relativistic cosmology
We conduct three investigations in Relativistic Cosmology that is the Einstein Field Equations applied to the largest scales with source field typically taken to be a perfect fluid and fundamental observers comoving with the preferred fluid four-velocity. We show using a tetrad analysis of the …
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Topics in relativistic cosmology: Cosmology on the past lightcone and in modified gravitation
… angular deviations are not considered. Standard cosmology based on General Relativity is generally believed to have serious shortcomings, such as the unexplained issues of dark matter and dark energy. As a remedy, many alternative theories of gravitation have been proposed over the years, one of …
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The differential space concept : a generalization of the manifold concept
… with the classical singularity problem in relativistic cosmology and relativistic astrophysics. To overcome this problem, attempts have been made to obtain a more general and geometrically manageable concept than the traditional manifold concept. It is to this end that Aronszajn and …
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Cosmological constraints using 2- and 3-point correlations with meerkat, the ska and other surveys
We explore the information from HI power spectra (tree-level and one-loop) in redshift space and bispectrum tree-level models. 21-cm emission from neutral hydrogen is a promising tool for probing the matter distribution in the universe post-reionization. The HI signals contain signatures of the …