Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solution of the Cauchy Problem for Oscillatory Equation with Delay   Ordinary differential equations of the second order with one constant delay
are considered in this paper. An analytical representation of the solution is
obtained using the method of steps.

31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph