Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extensions of the class of multiplicative functions   We consider the classes of quasimultiplicative, semimultiplicative and
Selberg multiplicative functions as extensions of the class of multiplicative
functions. We apply these concepts to Ramanujan's sum and its analogue with
respect to regular integers (mod r).

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The categories of this paper are: cond-mat
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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
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The categories of this paper are: comp-gas
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The categories of this paper are: nlin
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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: adap-org
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: q-alg