Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stationary localized states due to quadratic nonlinearity in one
  dimensional systems   We investigate the effect of a nondegenerate quadratic nonlinear dimeric
impurity on the formation of stationary localized states in one dimensional
systems. We also consider the formation of stationary localized states in a
fully nonlinear system where alternative sites have same nonlinear strengths.
Appropriate ansatzs have been chosen for all the cases which reproduce known
results for special cases. Connection of the stability of a state with its
energy is presented graphically.

19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga