Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Symmetry Inheritance and Jebsen-Birkhoff Theorem   It is known that the Jebsen-Birkhoff theorem is valid for vacuum solutions to
Einstein's equation, as well as some of its generalizations. Using symmetry
inheritance properties we investigate in detail the additional constraints that
fields have to satisfy in order to allow the Jebsen-Birkhoff theorem in the
non-vacuum cases of a wide class of gravitational field equations.

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The categories of this paper are: dg-ga
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an