Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: QPOs from Radial and Vertical Oscillation of Shocks in Advective
  Accretion Flows   We present results of several numerical simulations of two dimensional
advective flows which include cooling processes. We show that the computed
light curve is similar to the $\chi$ state in GRS 1915+105. The power density
spectrum (PDS) also shows presence of QPOs near the break frequency.

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The categories of this paper are: patt-sol
2
The categories of this paper are: math
19
The categories of this paper are: eess
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom