Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some fourth order CY-type operators with non symplectically rigid
  monodromy   We study tuples of matrices with rigidity index two in $\Sp_4(\mathbb{C})$,
which are potentially induced by differential operators of Calabi-Yau type. The
constructions of those monodromy tuples via algebraic operations and middle
convolutions and the related constructions on the level differential operators
lead to previously known and new examples.

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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: chem-ph
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The categories of this paper are: nlin
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The categories of this paper are: supr-con
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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: cs
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: hep-th