mathematical physics, a null dust solution (sometimes called a null fluid) is a Lorentzian manifold in which the Einstein tensor is null. Such a spacetime can...

dust solution. A null dust solution is a dust solution where the Einstein tensor is null.[further explanation needed] A Bianchi dust models exhibits various[which...

swirling dust particles (see dust solution), and the second associated with a negative cosmological constant (see Lambdavacuum solution). This solution has...

relativity, the van Stockum dust is an exact solution of the Einstein field equations where the gravitational field is generated by dust rotating about an axis...

is the field energy (and momentum) of the electromagnetic field, Null dust solutions: T α β {\displaystyle T^{\alpha \beta }} must correspond to a stress–energy...

under the direction of Jon Mathews. In 1969, he published an exact null dust solution to the Einstein field equation and thereby created the photon rocket...

spacetime can be interpreted, in the context of general relativity, as a null dust solution. Also, the Weyl tensor always has Petrov type N as may be verified...

light (null dusts) or dark matter, and thus provides an incomplete description of stellar mass black holes and active galactic nuclei. The solution however...

symmetric and nonrotating star which is either emitting or absorbing null dusts. It is named after the Indian physicist Prahalad Chunnilal Vaidya and...

vacuum solutions of Brans–Dicke theory. Similarly, an important class of spacetimes, the pp-wave metrics, are also exact null dust solutions of both...

the class of non-conformally flat null electrovacuum or null dust solutions admitting an expanding but nontwisting null congruence is precisely the class...

\\\end{array}}\right.} This is a null dust solution and can be interpreted as incoherent electromagnetic radiation. The exterior part of the solution is defined by { d...

Ivor M. Robinson and Andrzej Trautman discover the Robinson-Trautman null dust solution 1960 – Robert Pound and Glen Rebka test the gravitational redshift...

description of the motion of the dust. There is also an optical (or null) version of Raychaudhuri's equation for null geodesic congruences. θ ^ ˙ = − 1...

important exact solutions in general relativity, including the Kerr vacuum (which models a rotating black hole) and the van Stockum dust (which models a...

source-free solution of the Maxwell field equations on the particular curved spacetime defined by the metric tensor above. It is a null solution, and it represents...

required to compare any two null dust solutions, at most two differentiations are required to compare any two Petrov D vacuum solutions, at most three differentiations...

Nucleosynthesis Nuclide Nuclotron Nuker Team Null corrector Null dust solution Null surface Nuller Nulling interferometry Number density Numerical model...

hole the van Stockum dust (which models a cylindrically symmetric configuration of dust) the Gödel lambda dust (which models a dust with a carefully chosen...

Existence from null to null: Encoded Eternity, Object-Oriented Primal Vow (Sep.17 – Nov.5, 2023 / Gifu, Kusakabe Folk Museum]) From null, all phenomena...

as follows. These solutions were proposed by Kerr and Schild in 1965. Notice that k is a unit 3-vector, making the 4-vector a null vector, with respect...

known as null field method and extended boundary technique method (EBCM). Matrix elements are obtained by matching boundary conditions for solutions of Maxwell...

due to experimental error. Many physicists dust off Stokes' work, and dragging becomes the "standard solution" 1887 to 1888 – Heinrich Hertz verifies the...

be an exact or approximate solution to the Einstein field equation. Congruences generated by nowhere vanishing timelike, null, or spacelike vector fields...

less common in known solutions of the Einstein field equations. Null singularities: These singularities occur on light-like or null surfaces. An example...

different points in time, or both). Wormholes are based on a special solution of the Einstein field equations. More precisely they are a transcendental...

diagonal boundary lines of a Penrose diagram correspond to the region called "null infinity", or to singularities where light rays must end. Thus, Penrose diagrams...

(expressed in cylindrical, polar spherical, or double null coordinates, respectively). But the general solution of the ordinary three-dimensional wave equation...

Roberts attempts to argue that the exterior solution in a model of a rotating star should be a perfect fluid or dust rather than a vacuum, and then argues that...

considered as the effect of space being a conventional viscous fluid; the null dust; the Gödel metric in general relativity, which allows closed timelike...