Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The m=2 amplituhedron   The (tree) amplituhedron $\mathcal{A}_{n, k, m}$ is introduced by
Arkani-Hamed and Trnka in 2013 in the study of $\mathcal{N}=4$ supersymmetric
Yang-Mills theory. It is defined in terms of the totally nonnegative
Grassmannians. In this paper, we show that the amplituhedron $\mathcal{A}_{n,
k, m}$ for $m=2$ admits a triangulation. Our collection of cells is constructed
via BCFW-type recursion. We also provide a diagrammatic interpretation of our
construction.

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The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
12
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: stat
0
The categories of this paper are: hep-ph
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org