Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Computing the level of a modular rigid Calabi-Yau threefold   In a previous article (a joint work with J. Manoharmayum) the modularity of a
large class of rigid Calabi-Yau threefolds was established. To make that result
more explicit, we recall (and re-prove) a result of Serre giving a bound for
the conductor of an "integral" 2-dimensional compatible family of Galois
representations and apply this result to give an algorithm that determines the
level of a modular rigid Calabi-Yau threefold. We apply the algorithm to three
examples.

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The categories of this paper are: acc-phys
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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: ao-sci
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The categories of this paper are: gr-qc
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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: hep-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
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The categories of this paper are: cond-mat