Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interplay of linear and modified nonlinear impurities in the formation
  of stationary localized states   Formation of stationary localized states in one-dimensional chain due to a
linear impurity and a modified nonlinear impurity is studied. Furthermore, a
one-dimensional chain with linear and modified nonlinear site energies at the
alternate sites is studied and rich phase diagrams of SL states are obtained
for all the systems we considered. The results are compared with those of the
linear and nonlinear systems.

3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph