Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Helical motion of elastic spheres   We study the elastic deformations that appear due to tidal and centrifugal
forces acting on an elastic sphere in helical motion in a spherically symmetric
gravitational field, where gravity is considered to be given by either a
Newtonian or a Schwarzschild background. We review an existence/uniqueness
theorem based on the implicit function theorem for the nonrelativistic case and
give explicit solutions to the linearized elastostatic equations in both cases.

9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph