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   Articles with "positive cosmological" as a keyword



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Bianchi I solutions of the Einstein-Boltzmann system with a positive cosmological constant

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recommendations! Published in 2017 at "Journal of Mathematical Physics"

DOI: 10.1063/1.4985935

Abstract: In this paper, we study the future global existence and late-time behaviour of the Einstein-Boltzmann system with Bianchi I symmetry and a positive cosmological constant Λ>0. For the Boltzmann equation, we consider the scattering kernel… read more here.

Keywords: bianchi solutions; cosmological constant; positive cosmological; boltzmann system ... See more keywords

Analysis of gravitational radiation generated by type D black holes with positive cosmological constant

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recommendations! Published in 2024 at "Physical Review D"

DOI: 10.1103/physrevd.110.104029

Abstract: The criterion for existence of gravitational radiation at conformal infinity in the presence of a positive cosmological constant is applied to a general family of exact solutions representing generic (pairs of) black holes of algebraic… read more here.

Keywords: type black; cosmological constant; positive cosmological; gravitational radiation ... See more keywords

A positive cosmological constant as a geometrical artifact

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recommendations! Published in 2022 at "Modern Physics Letters A"

DOI: 10.1142/s0217732323500025

Abstract: In this paper, we revisit the classical mechanism to produce [Formula: see text]-dimensional spacetimes via Kaluza–Klein compactification. We made the assumption that the [Formula: see text]-dimensional bulk geometry [Formula: see text] admits a Homothetic Vector… read more here.

Keywords: text dimensional; formula see; cosmological constant; see text ... See more keywords

A review of total energy–momenta in GR with a positive cosmological constant

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recommendations! Published in 2019 at "International Journal of Modern Physics D"

DOI: 10.1142/s0218271819300039

Abstract: A review is given of the various approaches to and expressions for total energy–momentum and mass in the presence of a positive cosmological constant in Einstein’s field equations, together with a discussion of the key… read more here.

Keywords: energy momenta; cosmological constant; positive cosmological; total energy ... See more keywords