Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Breathers in a model of a polymer with secondary structure   A simple model of a polymer is considered: a chain of (different) point
masses, connected by harmonic springs, embedded in two dimensional space. In
order to determine conditions for existence and stability of breather
excitations, the method of numerical continuation of a breather solution from
the anticontinuous limit is employed. Approaching the limit of equal masses,
stable breather solutions are found only within an extremely narrow band of
frequencies.

27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org