energy momentum tensor

energy momentum tensor

[′en·ər·jē mə′men·təm ‚ten·sər]
(physics)
A tensor whose 16 elements give the energy density, momentum density, and stresses in a distribution of matter or radiation.
References in periodicals archive ?
for all vector fields X, Y where S is the Ricci tensor of the type (0, 2), r is the scalar curvature, k is the gravitational constant and T is the energy momentum tensor of type (0, 2).
The energy momentum tensor T is said to describe a perfect fluid [2] if
In a Lorentzian para- Sasakian type spacetime by considering the characteristic vector field [xi] as the flow vector field of the fluid, the energy momentum tensor takes the form
Although there are physical arguments for equating the Einstein tensor to the energy momentum tensor ([G.
In the general theory of relativity, energy momentum tensor plays an important role and the condition on energy momentum tensor for a perfect fluid space time changes the nature of space time (5).
We know an energy momentum tensor T will be covariant recurrent (6) if
So we like to define generalized covariant recurrent energy momentum tensor as follows:
An energy momentum tensor T is said to be generalized covariant recurrent if
Generalized recurrent energy momentum tensor in a general relativistic space time
ij] being the ordinary energy momentum tensor associated to isotropic matter and radiation.
where k is the Einstein's gravitational constant, T is the energy momentum tensor of type (0,2) given by
The energy momentum tensor in this symmetry (and this particular case) is:

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