Results 181 to 190 of about 196,671 (220)
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1992
Abstract Cosmology is the study of the dynamical structure of the universe as a whole. As in most modelling exercises, we shall start by trying to find a very simple model of the universe. This is done by smoothing out all the irregularities in space and in time and concentrating simply on the gross features of the universe. So, to start
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Abstract Cosmology is the study of the dynamical structure of the universe as a whole. As in most modelling exercises, we shall start by trying to find a very simple model of the universe. This is done by smoothing out all the irregularities in space and in time and concentrating simply on the gross features of the universe. So, to start
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Some Relativistic Cosmological Models
General Relativity and Gravitation, 1998The author's dissertation from 1966 is published here for the first time in a journal. The now famous ``Kantowski-Sachs models'' in cosmology were deduced under the supervisorship of R. Sachs. The commutation relations and Killing equations then require the metric to have the following form \[ ds^2= dt^2- X(t)^2 dr^2- Y(t)^2 g_{AB} dx^A dx^B \qquad (A ...
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Relativistic kinetics and cosmology. I
Soviet Physics Journal, 1980A study is made of the problem of describing the cosmological expansion of a plasma in the framework of Chernikov's relativistic kinetic theory. It is shown that from the point of view of relativistic kinetics there are two stages in the evolution of the Universe in which thermodynamic equilibrium of the plasma is attained asymptotically: 1) the ...
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Analogies between Logistic Equation and Relativistic Cosmology
Symmetry, 2021Valerio Faraoni, Andrea Giusti
exaly
Relativistic Astrophysics and Cosmology
2000Without pretending to represent the vast extent of the scientific interests of our national community, this year’s Workshop has been dedicated to four sharp wedges of active research in the discipline: Recent Results about Gamma Ray Bursters (GRB’s); Accretion onto Black Holes (BH’s); Backgrounds of Gravitational Waves (GW’s ...
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Relativistic Cosmology and the Pioneers Anomaly
Journal of Modern Physics, 2012Marcelo Samuel Berman
exaly