Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact General Relativistic Discs and the Advance of Perihelion   The advance of perihelion for geodesic motion on the galactic plane of some
exact general relativistic disc solutions is calculated. Approximate analytical
and numerical results are presented for the static Chazy-Curzon and the
Schwarzschild discs in Weyl coordinates, the Schwarzschid disc in isotropic
coordinantes and the stationary Kerr disc in the Weyl-Lewis-Papapetrou metrics.
It is found that for these disc models the advance of perihelion may be an
increasing or decreasing function of the orbital excentricity. The precession
due to Newtonian gravity for these disc models is also calculated.

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The categories of this paper are: supr-con
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The categories of this paper are: eess
10
The categories of this paper are: q-bio
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The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ex