Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Lax Pair for the Dynamics of DNA Modeled as a Shearable and Extensible
  Elastic Rod   We introduce a spectral parameter into the geometrically exact Hamiltonian
equations for the elastic rod in a way that creates a Lax pair. This assures
integrability and permits application of the inverse scattering transform
solution method. If the method can be carried through, the solution of the
original problem is recovered by setting the spectral parameter to zero.

34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org