Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal Fourier expansions of Bianchi modular forms   We generalize Merel's work on universal Fourier expansions to Bianchi modular
forms over Euclidean imaginary quadratic fields, under the assumption of the
nondegeneracy of a pairing between Bianchi modular forms and Bianchi modular
symbols. Among the key inputs is a computation of the action of Hecke operators
on Manin symbols, and building upon the Heilbronn-Merel matrices constructed by
Mohamed.

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The categories of this paper are: hep-th
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The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
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The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: gr-qc
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The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: stat