Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear diffusion of dislocation density and self-similar solutions   We study a nonlinear pseudodifferential equation describing the dynamics of
dislocations. The long time asymptotics of solutions is described by the
self-similar profiles.

26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
3
The categories of this paper are: physics