Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectral properties of spherically confined dusty plasma crystals   A combined theoretical and experimental analysis of the normal modes of
three-dimensional spherially confined Yukawa clusters is presented. Particular
attention is paid to the breathing mode and the existence of multiple monopole
oscillations in Yukawa systems. Finally, the influence of dissipation on the
mode spectrum is investigated.

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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
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The categories of this paper are: hep-th