Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discussion on exp-function method and modified method of simplest
  equation   We discuss the relation between the modified method of simplest equation and
the exp-function method. First on the basis of our experience from the
application of the method of simplest equation we generalize the exp-function
ansatz. Then we apply the ansatz for obtaining exact solutions for members of a
class of nonlinear PDEs which contains as particular cases several nonlinear
PDEs that model the propagation of water waves.

33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom