Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Calculation of master integrals in terms of elliptic multiple
  polylogarithms   In modern quantum field theory, one of the most important tasks is the
calculation of loop integrals. Loop integrals appear when evaluating the
Feynman diagrams with one or more loops by integrating over the internal
momenta. Even though this problem has already been in place since the
mid-twentieth century, we not only do not understand how to calculate all
classes of these integrals beyond one loop, we do not even know in what class
of functions the answer is expressed. To partially solve this problem,
different variations of new functions called usually elliptic multiple
polylogarithms have been introduced in the last decade. In this paper, we
explore the possibilities and limitations of this class of functions. As a
practical example, we chose the processes associated with the physics of heavy
quarkonium at the two-loop level.

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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
1
The categories of this paper are: cs