Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Globally generated vector bundles of rank 2 on a smooth quadric
  threefold   We investigate the existence of globally generated vector bundles of rank 2
with $c_1\leq 3$ on a smooth quadric threefold and determine their Chern
classes. As an automatic consequence, every rank 2 globally generated vector
bundle on $Q$ with $c_1=3$ is an odd instanton up to twist.

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The categories of this paper are: hep-th
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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: astro-ph