Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cayley's surface revisited   Cayley's (ruled cubic) surface carries a three-parameter family of twisted
cubics. We describe the contact of higher order and the dual contact of higher
order for these curves and show that there are three exceptional cases.

11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc