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Almost Schouten solitons and perfect fluid spacetimes
FilomatIn this study, we assume that a perfect fluid is the source of the gravitational field while analyzing the solutions to the Einstein field equations. With this new and innovative approach, we study almost Schouten and gradient Schouten solitons on perfect fluid spacetimes.
Arpan Sardar, Changhwa Woo, Uday De
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Static and stationary dark fluid universes: a gravitoelectromagnetic perspective. [PDF]
Sci Rep, 2022 Nouri-Zonoz M, Nourizonoz A.
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Blow-up of waves on singular spacetimes with generic spatial metrics. [PDF]
Lett Math Phys, 2022 Fajman D, Urban L.
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The spacetime geodesy of perfect fluid spheres
Herein we shall argue for the utility of "spacetime geodesy", a point of view where one delays as long as possible worrying about dynamical equations, in favour of the maximal utilization of both symmetries and geometrical features. This closely parallels Weinberg's distinction between "cosmography" and "cosmology", wherein maximal utilization of both ...
Simmonds, Christopher, Visser, Matt
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Generalized teleparallel de Sitter geometries. [PDF]
Eur Phys J C Part Fields, 2023 Coley AA +3 more
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Perfect fluid with shear viscosity and spacetime evolution
Chinese Journal of PhysicsWe investigate the anisotropic evolution of spacetime driven by perfect fluid with off-diagonal shear-viscosity components. We consider the simplest form of the equation of state for fluid, for which the pressure and the shear stress are proportional to the energy density individually.
Inyong Cho, Rajibul Shaikh
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Quasi-geodesics in relativistic gravity. [PDF]
Eur Phys J C Part Fields, 2021 Faraoni V, Vachon G.
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Exploration of a singular fluid spacetime. [PDF]
Gen Relativ Gravit, 2021 Remmen GN.
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Charged Shear-Free Fluids and Complexity in First Integrals. [PDF]
Entropy (Basel), 2022 Gumede SC, Govinder KS, Maharaj SD.
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Thermal stability of stealth and de Sitter spacetimes in scalar-tensor gravity. [PDF]
Eur Phys J C Part Fields, 2023 Giardino S, Giusti A, Faraoni V.
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