Results 141 to 150 of about 7,610 (173)

Computer algebra in gravity research. [PDF]

Living Rev Relativ, 2018
MacCallum MAH.
europepmc   +1 more source

Analogue Gravity. [PDF]

Living Rev Relativ, 2011
Barceló C, Liberati S, Visser M.
europepmc   +1 more source

Theorems on Existence and Global Dynamics for the Einstein Equations. [PDF]

Living Rev Relativ, 2005
Rendall AD.
europepmc   +1 more source

Expanding wave solutions of the Einstein equations that induce an anomalous acceleration into the Standard Model of Cosmology. [PDF]

Proc Natl Acad Sci U S A, 2009
Temple B, Smoller J.
europepmc   +1 more source

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Static perfect fluid spacetimes on GRW spacetimes

Analysis and Mathematical Physics, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
De, Uday Chand, Sardar, Arpan
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Perfect fluid spacetimes and Yamabe solitons

Journal of Mathematical Physics, 2021
This paper deals with the study of perfect fluid spacetimes. It is proven that a perfect fluid spacetime is Ricci recurrent if and only if the velocity vector field of perfect fluid spacetime is parallel and α = β. In addition, in a stiff matter perfect fluid Yang pure space with p + σ ≠ 0, the integral curves generated by the velocity vector field are
U. C. De, S. K. Chaubey, S. Shenawy
openaire   +3 more sources

Lanczos Potential and Perfect Fluid Spacetimes

International Journal of Theoretical Physics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ahsan, Zafar, Bilal, Mohd
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Investigation on gradient solitons in perfect fluid spacetimes

Reports on Mathematical Physics, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Krishnendu De, Uday Chand De
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Perfect fluid sources for spatially homogeneous spacetimes

Annals of Physics, 1983
Abstract Spatially homogeneous perfect fluid spacetimes are studied from a point of view which emphasizes the spatial geometry and the action of that subgroup of the spatial gauge group of the three-plus-one formulation of general relativity which is compatible with the spatial homogeneity.
exaly   +4 more sources

Projective symmetry in perfect fluid spacetimes

Classical and Quantum Gravity, 2002
Summary: Following a study of projective symmetry in Friedmann-Robertson-Walker models in \textit{G. S. Hall} [Classical Quantum Gravity 17, 4637-4644 (2000; Zbl 0988.83015)], it is shown (theorem 2) that the only conformally flat, perfect fluid spacetimes admitting such symmetry are, essentially, (locally) of the Friedmann-Robertson-Walker type.
Hall, G. S., Patel, M. T.
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