Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-linear rheology of layered systems - a phase model approach   We study non-linear rheology of a simple theoretical model developed to mimic
layered systems such as lamellar structures under shear. In the present work we
study a 2-dimensional version of the model which exhibits a Kosterlitz-Thouless
transition in equilibrium at a critical temperature Tc. While the system
behaves as Newtonain fluid at high temperatures T > Tc, it exhibits shear
thinning at low temperatures T < Tc. The non-linear rheology in the present
model is understood as due to motions of edge dislocations and resembles the
non-linear transport phenomena in superconductors by vortex motions.

12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga