Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Derived-Term Automata of Multitape Rational Expressions (Long version)   We introduce (weighted) rational expressions to denote series over Cartesian
products of monoids. To this end, we propose the operator $|$ to build
multitape expressions such as $(a^+|x + b^+|y)^*$. We define expansions, which
generalize the concept of derivative of a rational expression, but relieved
from the need of a free monoid. We propose an algorithm based on expansions to
build multitape automata from multitape expressions.

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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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The categories of this paper are: math
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The categories of this paper are: acc-phys