Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A generalized Poincar\'e-Birkhoff theorem   We prove a generalization of the classical Poincar\'e--Birkhoff theorem for
Liouville domains, in arbitrary even dimensions. This is inspired by the
existence of global hypersurfaces of section for the spatial case of the
restricted three-body problem (as proved by the authors in arXiv:2011.10386).

15
The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-lat
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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
1
The categories of this paper are: cs