Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wiener index and Harary index on pancyclic graphs   Wiener index and Harary index are two classic and well-known topological
indices for the characterization of molecular graphs. Recently, Yu et al.
\cite{YYSX} established some sufficient conditions for a graph to be pancyclic
in terms of the edge number, the spectral radius and the signless Laplacian
spectral radius of the graph. In this paper, we give some sufficient conditions
for a graph being pancyclic in terms of the Wiener index, the Harary index, the
distance spectral radius and the Harary spectral radius of a graph.

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The categories of this paper are: hep-ph
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The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: bayes-an
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The categories of this paper are: cs
27
The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph