Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Activity of five WZ Sge-type systems in a few years after their
  outbursts   We present results of observations and analysis of five WZ-type dwarf novae:
SDSS J080434.20+510349.2, SDSS J102146.44+234926.3, V1108 Her, ASAS J0025 and
WZ Sge in 3 - 7 years after their outbursts. We found: 1) the observational
evidences that emerging of the white dwarf nonradial pulsation in SDSS
J080434.20+510349.2 [1] is no longer a regular since 3-rd year after 2006
outburst; 2) the true value of orbital period for V1108 Her (0.05672 d) and
mass ratio (0.09); 3) The main feature of quiescent light curves of ASAS J0025
is the high-amplitude quasiperiodical light variations probably originated in
accretion disk; 4) in SDSS J102146.44+234926.3 in some occasions the brightness
is modulated by period of 0.01367 day or with the multiple of it. The main
brightness modulation of J080434.20+510349.2, V1108 Her and WZ Sge is the
orbital one and has two-humped shape.

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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: q-alg
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: nlin