Results 11 to 20 of about 881 (177)
Newtonian and relativistic cosmologies
Physical Review D, 2012 35 pages; minor ...
Green, Stephen R., Wald, Robert M.
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Type V singularities with inhomogeneous equations of state
Physics Letters B, 2022 Interest in cosmological singularities has remarkably grown in recent times, particularly on future singularities with the discovery of late-time acceleration of the universe and dark energy.
Oem Trivedi
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Cosmological analogies, Lagrangians, and symmetries for convective–radiative heat transfer
European Physical Journal C: Particles and Fields, 2020 A formal analogy between the Friedmann equation of relativistic cosmology and models of convective–radiative cooling/heating of a body (including Newton’s, Dulong–Petit’s, Newton–Stefan’s laws, and a generalization) is discussed.
Valerio Faraoni +2 more
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Relativistic Fractional-Dimension Gravity
Universe, 2021 This paper presents a relativistic version of Newtonian Fractional-Dimension Gravity (NFDG), an alternative gravitational model recently introduced and based on the theory of fractional-dimension spaces.
Gabriele U. Varieschi
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CHARLES SANDERS PEIRCE AND THE PLACE OF CHAOS IN THE NEW WORLD ORDER [PDF]
Filozofia i NaukaThis article examines the main ideas of the metaphysics of the prominent American logician and philosopher Charles Sanders Peirce. It is shown that a significant part of his „scientific metaphysics” is evolutionary cosmology, characterized, in particular,
Volodymyr Ratnikov
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Analogy between equilibrium beach profiles and closed universes
Physical Review Research, 2019 We reformulate the variational problem describing equilibrium beach profiles in the thermodynamic approach of Jenkins and Inman [J. Geophys. Res.: Oceans 111, C02003 (2006)10.1029/2005JC002899].
Valerio Faraoni
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Correspondence between dark energy quantum cosmology and Maxwell equations
European Physical Journal C: Particles and Fields, 2019 A Friedmann–Robertson–Walker cosmology with dark energy can be modelled using a quintessence field. That system is equivalent to a relativistic particle moving on a two-dimensional conformal spacetime.
Felipe A. Asenjo, Sergio A. Hojman
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On the time delay between ultra-relativistic particles
Physics Letters B, 2016 The time delay between the receptions of ultra-relativistic particles emitted simultaneously is a useful observable for both fundamental physics and cosmology.
Pierre Fleury
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Cosmic Analogues of Classic Variational Problems
Universe, 2020 Several classic one-dimensional problems of variational calculus originating in non-relativistic particle mechanics have solutions that are analogues of spatially homogeneous and isotropic universes.
Valerio Faraoni
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Cosmological dynamics of relativistic MOND
Journal of Cosmology and Astroparticle Physics, 2022 Abstract In this paper, we investigate the recently proposed relativistic theory for MOND using phase space analysis. Unlike its precedent theory, namely TeVeS, this theory is claimed to agree with the observed Cosmic Microwave Background and matter power spectra. We convert the background cosmological equations of the theory to a set of
Kashfi, Tahere, Roshan, Mahmood
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