Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of cylindrical domain walls in nematic liquid crystals   Analytical calculations of the dynamics of a curved domain wall in a nematic
liquid crystal are performed. The core of the wall is assumed to form a
cylinder, whose axis coincides with the direction of an external magnetic
field. The equation of motion for the nematic director field is solved in a
comoving coordinate frame by applying a polynomial expansion of the tilt angle
with respect to the radial distance from the wall core. Starting from a
cylindrical domain wall at rest as initial conditions, the shrinking of the
cylinder and the change of the wall width is analysed in detail. In particular,
we find that the Neel wall decays faster than the Bloch wall, in agreement with
energy considerations.

27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con