Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Brouwer's satellite solution redux   Brouwer's solution to the artificial satellite problem is revisited to show
that the complete Hamiltonian reduction is rather achieved in the plain
Poincar\'e's style, through a single canonical transformation, than using a
sequence of partial reductions based on von Zeipel's alternative for dealing
with perturbed degenerate Hamiltonian systems.

0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph