Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the classification of tight contact structures   Recently, there have been several breakthroughs in the classification of
tight contact structures. We give an outline on how to exploit methods
developed by Ko Honda and John Etnyre to obtain classification results for
specific examples of small Seifert manifolds.

15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys