Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Global behavior of solutions of nonlinear ODEs in $\CC$: first order
  equations   We show that the solutions of first order nonlinear ODEs can be controlled
globally in the complex domain, using a finite set of constants of motion
defined in regions of $\CC$. These constants of motion enable us to obtain
quantitative behaviors of the solutions far away from the origin, as well as to
determine the position of singularities of the solution.

1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an