Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Sp_4 modularity of Picard--Fuchs differential equations for
  Calabi--Yau threefolds (with an appendix by Vicentiu Pasol)   Motivated by the relationship of classical modular functions and
Picard--Fuchs linear differential equations of order 2 and 3, we present an
analogous concept for equations of order 4 and 5.

9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin