Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The solid angle and the Burgers formula in the theory of gradient
  elasticity: line integral representation   A representation of the solid angle and the Burgers formula as line integral
is derived in the framework of the theory of gradient elasticity of Helmholtz
type. The gradient version of the Eshelby-deWit representation of the Burgers
formula of a closed dislocation loop is given. Such a form is suitable for the
numerical implementation in 3D dislocation dynamics (DD).

27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol