Results 161 to 170 of about 7,610 (173)

Petrov type II perfect fluid spacetimes with vorticity

Classical and Quantum Gravity, 1985
Summary: We present a stationary spacetime of Robinson-Trautman type containing a perfect fluid with vorticity and obeying the equation of state \(\mu +3p=\) constant. Einstein's equations are reduced to a single fourth-order partial differential equation in two independent variables. A special case of our spacetime refers to a static sphere of perfect
Bonnor, W. B., Davidson, W.
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Uniqueness properties of purely magnetic LRS perfect fluid spacetimes

Classical and Quantum Gravity, 2002
Summary: We show that all purely magnetic Petrov type D, irrotational, aligned perfect fluid spacetimes are locally rotationally symmetric class III by the Ellis classification. This result is combined with a similar theorem for purely magnetic Petrov type D, shear-free, aligned perfect fluid spacetimes.
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Static perfect fluid spacetimes on f-Kenmotsu 3-manifolds

ANNALI DELL'UNIVERSITA' DI FERRARA
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Uday Chand De, Arpan Sardar
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Cosmic censorship in spherically symmetric perfect fluid spacetimes

Classical and Quantum Gravity, 1993
Summary: We show that shell (crossing) singularities are at least marginally trapped, if the ratio of pressure and energy density tends to a non-zero constant for diverging energy density. This result gives strong support for weak cosmic censorship of shell crossing singularities, if a perfect fluid with physically realistic equations of state is ...
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Conservation Laws for Asymptotically Perfect Fluid Spacetimes

In physics, conservation laws, like those for energy or momentum, are powerful tools that help us understand how systems evolve and interact. In general relativity, where spacetime itself is curved by matter and energy, defining such conservation laws becomes especially subtle and complex.
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Spacetimes admitting the Z-symmetric tensor

Quaestiones Mathematicae, 2020
Fusun Ozen Zengin, Ayşe YAVUZ TAŞCI
exaly  

Lanczos Potential and Perfect Fluid Spacetimes

2019
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A perfect storm: How tumor biology, genomics, and health care delivery patterns collide to create a racial survival disparity in breast cancer and proposed interventions for change

Ca-A Cancer Journal for Clinicians, 2015
Bobby Daly, Olufunmilayo I Olopade
exaly  

On Average Properties of Inhomogeneous Fluids in General Relativity: Perfect Fluid Cosmologies

General Relativity and Gravitation, 2001
Thomas Buchert
exaly  

Riemann solitons on perfect fluid spacetimes in f(r, T)-gravity

Rendiconti Del Circolo Matematico Di Palermo
Shahroud Azami, Mehdi Jafari
exaly