Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characterization of P-groups By Sum of Element Orders   Let $G$ be a finite group. Then we denote $\psi(G) = \sum_{x\in G}o(x)$ where
$o(x)$ is the order of the element $x$ in $G$. In this paper we characterize
some finite $p$-groups ($p$ a prime) by $\psi$ and their orders.

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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: cmp-lg
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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ph
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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph