Results 1 to 10 of about 400,960 (288)

Relativistic Cosmology with an Introduction to Inflation

open access: yesUniverse, 2021
In this review article, the study of the development of relativistic cosmology and the introduction of inflation in it as an exponentially expanding early phase of the universe is carried out.
Muhammad Zahid Mughal   +2 more
doaj   +2 more sources

Physical and Relativistic Numerical Cosmology [PDF]

open access: yesLiving Reviews in Relativity, 1998
In order to account for the observable Universe, any comprehensive theory or model of cosmology must draw from many disciplines of physics, including gauge theories of strong and weak interactions, the hydrodynamics and microphysics of baryonic matter ...
Peter Anninos
doaj   +4 more sources

Geometrothermodynamic Cosmology [PDF]

open access: yesEntropy, 2023
We review the main aspects of geometrothermodynamics, a formalism that uses contact geometry and Riemannian geometry to describe the properties of thermodynamic systems.
Orlando Luongo, Hernando Quevedo
doaj   +2 more sources

Transverse Velocities in Real-Time Cosmology: Position Drift in Relativistic N-Body Simulations [PDF]

open access: greenThe Open Journal of Astrophysics
The era of real-time cosmology has begun. It is now possible to directly measure the apparent drift of high-redshift astronomical sources across the sky $\textit{in real time}$.
Alexander Oestreicher   +3 more
doaj   +3 more sources

On General-Relativistic Lagrangian Perturbation Theory and Its Non-Perturbative Generalization

open access: yesUniverse, 2022
The Newtonian Lagrangian perturbation theory is a widely used framework to study structure formation in cosmology in the nonlinear regime. We review a general-relativistic formulation of such a perturbation approach, emphasizing results on an already ...
Thomas Buchert   +2 more
doaj   +1 more source

Relativistic Ermakov–Milne–Pinney Systems and First Integrals

open access: yesPhysics, 2021
The Ermakov–Milne–Pinney equation is ubiquitous in many areas of physics that have an explicit time-dependence, including quantum systems with time-dependent Hamiltonian, cosmology, time-dependent harmonic oscillators, accelerator dynamics, etc.
Fernando Haas
doaj   +1 more source

BIG RIP AND OTHER SINGULARITIES IN ISOTROPIC HOMOGENEOUS COSMOLOGICAL MODELS WITH ARBITRARY EQUATION OF STATE

open access: yesOdessa Astronomical Publications, 2016
We study the possible types of future singularities in the isotropic homogeneous cosmological models for the arbitrary equation of state of the contents of the Universe.
S. L. Parnovsky
doaj   +1 more source

Comparative Analysis of Jüttner’s Calculation of the Energy of a Relativistic Ideal Gas and Implications for Accelerator Physics and Cosmology

open access: yesEntropy, 2017
Jüttner used the conventional theory of relativistic statistical mechanics to calculate the energy of a relativistic ideal gas in 1911. An alternative derivation of the energy of a relativistic ideal gas was published by Horwitz, Schieve and Piron in ...
John R. Fanchi
doaj   +1 more source

General Relativistic Effects on Nonlinear Power Spectra [PDF]

open access: yes, 2010
The nonlinear nature of Einstein’s equation introduces genuine relativistic higher order corrections to the usual Newtonian fluid equations describing the evolution of cosmological perturbations.
Gong, Jinn-Ouk   +3 more
core   +2 more sources

Scale-relativistic cosmology [PDF]

open access: yesChaos, Solitons & Fractals, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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