Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Twistor and Polytope Interpretations for Subleading Color One-Loop
  Amplitudes   We use the relation of the one-loop subleading-color amplitudes to the
one-loop $n$-point leading color amplitudes in ${\cal N}=4$ SYM, to derive a
polytope interpretation for the former in the $MHV$ case, and a representation
in momentum twistor space for the general $N^kMHV$ case. These techniques are
explored in detail for the 5-point and 6-point amplitudes. We briefly discuss
the implications for IR divergences.

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The categories of this paper are: q-fin
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The categories of this paper are: math
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: cond-mat
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-th
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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: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: physics
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The categories of this paper are: adap-org