Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical simulation evidence of spectrum rearrangement in impure
  graphene   By means of numerical simulation we confirm that in graphene with point
defects a quasigap opens in the vicinity of the resonance state with increasing
impurity concentration. We prove that states inside this quasigap cannot longer
be described by a wavevector and are strongly localized. We visualize states
corresponding to the density of states maxima within the quasigap and show that
they are yielded by impurity pair clusters.

31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th