Limits of three-dimensional gravity and metric kinematical Lie algebras in any dimension
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2019)118
Abstract: Abstract We extend a recent classification of three-dimensional spatially isotropic homogeneous spacetimes to Chern-Simons theories as three-dimensional gravity theories on these spacetimes. By this we find gravitational theories for all carrollian, galilean, and aristotelian counterparts… read more here.
Keywords: limits three; dimensional gravity; three dimensional; gravity metric ... See more keywords
Four-dimensional gravity on a covariant noncommutative space
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2020)001
Abstract: We formulate a model of noncommutative four-dimensional gravity on a covariant fuzzy space based on SO(1,4), that is the fuzzy version of the $\text{dS}_4$. The latter requires the employment of a wider symmetry group, the… read more here.
Keywords: four dimensional; dimensional gravity; gravity; gauge ... See more keywords
Three-dimensional gravity inversion based on sparse recovery iteration using approximate zero norm
Sign Up to like & getrecommendations! Published in 2018 at "Applied Geophysics"
DOI: 10.1007/s11770-018-0688-3
Abstract: This research proposes a novel three-dimensional gravity inversion based on sparse recovery in compress sensing. Zero norm is selected as the objective function, which is then iteratively solved by the approximate zero norm solution. The… read more here.
Keywords: three dimensional; zero norm; dimensional gravity; inversion ... See more keywords
Non-existence of time-dependent three-dimensional gravity water flows with constant non-zero vorticity
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Fluids"
DOI: 10.1063/1.5048580
Abstract: We show that in a three-dimensional gravity water flow with a constant non-vanishing vorticity vector (Ω1, Ω2, Ω3), the free surface, the pressure, and the velocity field present no variations in the direction orthogonal to… read more here.
Keywords: three dimensional; direction; vorticity; dimensional gravity ... See more keywords
Evaporation and antievaporation instability of a Schwarzschild–de Sitter braneworld: The case of five-dimensional $F(R)$ gravity
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.124020
Abstract: We study the problem of a four-dimensional brane lying in the five-dimensional degenerate Schwarzschild-de Sitter (Nariai) black hole, in five-dimensional $F(R)$-gravity. We show that there cannot exist the brane in the Nariai bulk space except… read more here.
Keywords: brane; schwarzschild sitter; dimensional gravity; five dimensional ... See more keywords
Thin-shell wormholes in N-dimensional F(R) gravity
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271823500529
Abstract: In this work, spherically symmetric thin-shell wormholes with a conformally invariant Maxwell field for $N$-dimensional $F(R)$ gravity and constant scalar curvature $R$ are built. Two cases are considered: symmetric wormholes and asymmetric ones in the… read more here.
Keywords: dimensional gravity; wormholes dimensional; thin shell; shell wormholes ... See more keywords