Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 3/4 Fractional superdiffusion of energy in a system of harmonic
  oscillators perturbed by a conservative noise   We consider a harmonic chain perturbed by an energy conserving noise and show
that after a space-time rescaling the energy-energy correlation function is
given by the solution of a skew-fractional heat equation with exponent 3/4.

16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph