Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical study of a nonlinear heat equation for plasma physics   This paper is devoted to the numerical approximation of a nonlinear
temperature balance equation, which describes the heat evolution of a
magnetically confined plasma in the edge region of a tokamak. The nonlinearity
implies some numerical difficulties, in particular long time behavior, when
solved with standard methods. An efficient numerical scheme is presented in
this paper, based on a combination of a directional splitting scheme and the
IMEX scheme introduced in [Filbet and Jin]

27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics