Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Approximate solution to the fractional Lane-Emden type equations   In this paper, approximate solutions for a class of fractional Lane - Emden
type equations based on the series expansion method are presented. Various
examples are introduced and discussed. The recurrence relation for the
components of the approximate solution is constructed. In the standard integer
order derivative, it is shown that the results are the same as those obtained
by Adomian decomposition method, homotopy perturbation method, modified Laplace
decomposition method and variational iteration method.

23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph