Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectral methods for the spin-2 equation near the cylinder at spatial
  infinity   We solve, numerically, the massless spin-2 equations, written in terms of a
gauge based on the properties of conformal geodesics, in a neighbourhood of
spatial infinity using spectral methods in both space and time. This strategy
allows us to compute the solutions to these equations up to the critical sets
where null infinity intersects with spatial infinity. Moreover, we use the
convergence rates of the numerical solutions to read-off their regularity
properties.

31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg