期刊
JOURNAL OF MATHEMATICAL PHYSICS
卷 43, 期 10, 页码 4889-4897出版社
AMER INST PHYSICS
DOI: 10.1063/1.1505985
关键词
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It is shown that unlike the perfect fluid case, anisotropic fluids (principal stresses unequal) may be geodesic, without this implying the vanishing of (spatial) pressure gradients. Then the condition of vanishing four acceleration is integrated in noncomoving coordinates. The resulting models are necessarily dynamic, and the mass function is expressed in terms of the fluid velocity as measured by a locally Minkowskian observer. An explicit example is worked out. (C) 2002 American Institute of Physics.
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