Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Models of the Accretion Spots in Magnetic Cataclysmic Variables   The structure of the near-polar accretion spots on accreting magnetic white
dwarfs has been studied theoretically and observationally in numerous papers
over the last decade. Detailed treatments are available for the regime of low
mass flux, usually termed the bombardment case, and for higher mass fluxes
which create a strong shock standing above the photosphere of the white dwarf.
No general treatment is so far available for the case of shocks buried deep in
the photosphere. I review the theoretical foundations, present some
applications of theory, and discuss in short the open questions which still
need to be addressed.

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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
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The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom