Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heron Variables in 3-body Coulomb Problem   The use of coordinate variables with independent physical boundaries -- Heron
variables -- is proposed for the 3-body problem. The ansatz is given for
variational trial wave functions without local energy infinities at the Coulomb
singularities

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The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
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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: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: chem-ph
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The categories of this paper are: stat
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga