Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interpretation of the nonextensitivity parameter $q$ in some
  applications of Tsallis statistics and L\'evy distributions   The nonextensitivity parameter $q$ occuring in some of the applications of
Tsallis statistics (known also as index of the corresponding L\'evy
distribution) is shown to be given, in $q>1$ case, entirely by the fluctuations
of the parameters of the usual exponential distribution.

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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
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The categories of this paper are: stat
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn