Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Mixing Flows with Homogeneous Spectrum of Multiplicity Two   A mixing flow with homogeneous spectrum of multiplicity 2 is presented.

16
The categories of this paper are: stat
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The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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The categories of this paper are: cs
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ph