Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A model for studying double exponential growth in the two-dimensional
  Euler equations   We introduce a model for the two-dimensional Euler equations which is
designed to study whether or not double exponential growth can be achieved at
an interior point of the flow.

27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg