Results 31 to 40 of about 990,361 (319)

Conformally Coupled General Relativity

open access: yesUniverse, 2018
The gravity model developed in the series of papers (Arbuzov et al. 2009; 2010), (Pervushin et al. 2012) is revisited. The model is based on the Ogievetsky theorem, which specifies the structure of the general coordinate transformation group. The theorem
Andrej Arbuzov, Boris Latosh
doaj   +1 more source

The 3+1 formalism in teleparallel and symmetric teleparallel gravity

open access: yesEuropean 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
doaj   +1 more source

Irreversibility of time in general relativity [PDF]

open access: yesИзвестия Саратовского университета. Новая серия Серия: Физика, 2022
Background and Objectives: The equations of classical dynamics of particles and waves admit solutions with the reverse flow of time. Therefore, it is generally assumed that classical dynamics does not reflect the irreversibility of time.
Tsoy, Valery Ivanovich
doaj   +1 more source

Deformed general relativity [PDF]

open access: yesPhysical Review D, 2013
14 ...
Martin Bojowald, George M. Paily
openaire   +3 more sources

General relativity from causality

open access: yesJournal of High Energy Physics, 2017
We study large families of theories of interacting spin 2 particles from the point of view of causality. Although it is often stated that there is a unique Lorentz invariant effective theory of massless spin 2, namely general relativity, other theories ...
Mark P. Hertzberg, McCullen Sandora
doaj   +1 more source

Relative divergence of finitely generated groups [PDF]

open access: yesAlgebr. 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

Sgr A* and general relativity [PDF]

open access: yesClassical and Quantum Gravity, 2016
75 pages, 41 figures, invited topical review for ...
openaire   +4 more sources

What is general relativity? [PDF]

open access: yesPhysica Scripta, 2017
18 pages. Invited article for Physica Scripta Focus issue on 21st Century Frontiers. v2: Appendix amended, references added.
Alan A Coley, David L Wiltshire
openaire   +4 more sources

Quo Vadis, Mathematical General Relativity? [PDF]

open access: yesarXiv, 2021
A review of selected topics in mathematical general ...
arxiv  

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