Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An explicit basis for the rational higher Chow groups of abelian number
  fields   We review and simplify A. Beilinson's construction of a basis for the motivic
cohomology of a point over a cyclotomic field, then promote the basis elements
to higher Chow cycles and evaluate the KLM regulator map on them.

10
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: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
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The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
3
The categories of this paper are: physics
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: econ
17
The categories of this paper are: q-fin