Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Classification of Extremal Doubly Even Self-Dual Codes with
  2-Transitive Automorphism Group   In this note, we complete the classification of extremal doubly even
self-dual codes with 2-transitive automorphism groups.

19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin
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The categories of this paper are: supr-con
3
The categories of this paper are: physics