Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the relativistic Lagrange-Laplace secular dynamics for extrasolar
  systems   We study the secular dynamics of extrasolar planetary systems by extending
the Lagrange-Laplace theory to high order and by including the relativistic
effects. We investigate the long-term evolution of the planetary eccentricities
via normal form and we find an excellent agreement with direct numerical
integrations. Finally we set up a simple analytic criterion that allows to
evaluate the impact of the relativistic effects in the long-time evolution.

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The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
18
The categories of this paper are: econ