Results 21 to 30 of about 1,223,026 (285)
Curvature Dynamics in General Relativity
Universe, 2023 The equations of general relativity are recast in the form of a wave equation for the Weyl tensor. This allows reformulation of gravitational wave theory in terms of curvature waves, rather than metric waves.
Jan W. van Holten
doaj +1 more source
GR16: Quantum General Relativity [PDF]
, 2001 This is the report of the "Quantum General Relativity" session, at the 16th International Conference on General Relativity & Gravitation, held on July 15th to 21st 2001, in Durban, South Africa. The report will appear on the Proceedings of the conference.
Rovelli, Carlo
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Review of testing black hole candidates with electromagnetic radiation [PDF]
Iranian Journal of Physics Research, 2023 Astrophysical black holes are thought to be Kerr solution of general relativity but there is not yet observational evidence to prove them. One can study the emission of electromagnetic waves around them to test their geometry of space time.
Masoumeh Ghasemi Nodehi
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What is General Relativity? [PDF]
, 2017 General relativity is a set of physical and geometric principles, which lead to a set of (Einstein) field equations that determine the gravitational field, and to the geodesic equations that describe light propagation and the motion of particles on the ...
Coley, Alan A., Wiltshire, David L.
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Nonlocal extension of causal thermodynamics of the isotropic cosmic fluid
Physics Letters B, 2022 We establish the nonlocal generalization of the Israel-Stewart model for the relativistic causal thermodynamics of the cosmic fluid, which evolves in the homogeneous isotropic Universe.
Alexander B. Balakin, Alexei S. Ilin
doaj
Universe, 2017 Dark matter is probably the most fascinating enigma of modern physics [...]
Salvatore Capozziello
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Relative divergence of finitely generated groups [PDF]
Algebr. Geom. Topol. 15 (2015) 1717-1769, 2014 We generalize the concept of divergence of finitely generated groups by introducing the upper and lower relative divergence of a finitely generated group with respect to a subgroup. Upper relative divergence generalizes Gersten's notion of divergence, and lower relative divergence generalizes a definition of Cooper-Mihalik.
arxiv +1 more source
The 3+1 formalism in teleparallel and symmetric teleparallel gravity
European Physical Journal C: Particles and Fields, 2021 Teleparallel and symmetric teleparallel gravity offer platforms in which gravity can be formulated in interesting geometric approaches, respectively given by torsion and nonmetricity. In this vein, general relativity can be expressed in three dynamically
Salvatore Capozziello +3 more
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Quo Vadis, Mathematical General Relativity? [PDF]
arXiv, 2021 A review of selected topics in mathematical general ...
arxiv
Speed Limits in General Relativity [PDF]
, 1998 Some standard results on the initial value problem of general relativity in matter are reviewed. These results are applied first to show that in a well defined sense, finite perturbations in the gravitational field travel no faster than light, and second
Alcubierre M +7 more
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