Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some monodromy groups of finite index in $Sp_4(\mathbb{Z})$   We determine the index of five of the $7$ hypergeometric Calabi-Yau operators
that have finite index in $Sp_4(\mathbb{Z})$ and in two cases give a complete
description of the monodromy group. Furthermore we found six non-hypergeometric
Calabi-Yau operators with finite index in $Sp_4(\mathbb{Z})$, most notably a
case where the index is one.

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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: cond-mat
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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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: adap-org
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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: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga