Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Forced oscillations of a body attached to a viscoelastic rod of
  fractional derivative type   We study forced oscillations of a rod with a body attached to its free end so
that the motion of a system is described by two sets of equations, one of
integer and the other of the fractional order. To the constitutive equation we
associate a single function of complex variable that plays a key role in
finding the solution of the system and in determining its properties. This
function could be defined for a linear viscoelastic bodies of
integer/fractional derivative type.

11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess