Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Peierls transition with acoustic phonons and twist deformation in carbon
  nanotubes   We consider the Peierls instability due to the interaction of electrons with
both acoustic and optical phonons. We suggest that such a transition takes
place in carbon nanotubes with small radius. The topological excitations and
the temperature dependence of the conductivity resulting from the
electron-lattice interactions are considered.

26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas