Addendum: Symmetries of the energy-momentum tensor
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چکیده
منابع مشابه
Addendum: Symmetries of the energy-momentum tensor
In recent papers [1-3], we have discussed matter symmetries of non-static spherically symmetric spacetimes, static plane symmetric spacetimes and cylindrically symmetric static spacetimes. These have been classified for both cases when the energy-momentum tensor is non-degenerate and also when it is degenerate. Here we add up some consequences and the missing references about the Ricci tensor. ...
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It has been pointed by Hall et al. [1] that matter collinations can be defined by using three different methods. But there arises the question of whether one studies matter collineations by using the LξTab = 0, or LξT ab = 0 or LξT b a = 0. These alternative conditions are, of course, not generally equivalent. This problem has been explored by applying these three definitions to general static ...
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ژورنال
عنوان ژورنال: Journal of Mathematical Physics
سال: 2004
ISSN: 0022-2488,1089-7658
DOI: 10.1063/1.1777404