Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-dimensional Granular Gas of Inelastic Spheres with Multiplicative
  Driving   We study a two-dimensional granular gas of inelastic spheres subject to
multiplicative driving proportional to a power $|v(\vec{x})|^{\delta}$ of the
local particle velocity $v(\vec{x})$. The steady state properties of the model
are examined for different values of $\delta$, and compared with the
homogeneous case $\delta=0$. A driving linearly proportional to $v(\vec{x})$
seems to reproduce some experimental observations which could not be reproduced
by a homogeneous driving. Furthermore, we obtain that the system can be
homogenized even for strong dissipation, if a driving inversely proportional to

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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas