Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: The impact of temperature fluctuations on the large-scale clustering of
  the Ly$\alpha$ forest
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ