Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radial orbit instability as a dissipation-induced phenomenon   This paper is devoted to Radial Orbit Instability in the context of
self-gravitating dynamical systems. We present this instability in the new
frame of Dissipation-Induced Instability theory. This allows us to obtain a
rather simple proof based on energetics arguments and to clarify the associated
physical mechanism.

28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex