Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Compositional Studies of Ancient Copper from Romanian Territories   Ancient copper objects from Romanian Territories have been analyzed by
neutron activation analysis. A series of elements is determined: Au, Ag, As,
Co, Cr, Fe, Hg, Ni, Zn, Sb, Sc, Se, Sn. Using mathematical dendograms some
classifications and correlation have been established.

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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph