Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A bijection for nonorientable general maps   We give a different presentation of a recent bijection due to Chapuy and
Dol\k{e}ga for nonorientable bipartite quadrangulations and we extend it to the
case of nonorientable general maps. This can be seen as a Bouttier--Di
Francesco--Guitter-like generalization of the Cori--Vauquelin--Schaeffer
bijection in the context of general nonorientable surfaces. In the particular
case of triangulations, the encoding objects take a particularly simple form
and this allows us to recover a famous asymptotic enumeration formula found by
Gao.

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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas