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Lexicographical ordering of hypergraphs via spectral moment

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arxiv 2309.16925 v1 pith:WEGANRET submitted 2023-09-29 math.CO

classification math.CO
keywords hypergraphsorderlastlexicographicallinearorderingspectralunicyclic
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abstract

The lexicographical ordering of hypergraphs via spectral moments is called the $S$-order of hypergraphs.In this paper, the $S$-order of hypergraphs is investigated.We characterize the first and last hypergraphs in an $S$-order of all uniform hypertrees and all linear unicyclic uniformhypergraphs with given girth, respectively. And we give the last hypergraph in an $S$-order of all linear unicyclic uniform hypergraphs.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The ordering of hypertrees and unicyclic hypergraphs by the traces of $\mathcal{A}_{\alpha}$-tensor

    math.CO 2025-07 reject novelty 6.0 of 10

    The paper characterizes the extremal hypertrees and linear unicyclic hypergraphs under the lexicographic order induced by the A_alpha spectral moments.

  2. Lexicographical ordering by spectral moments of bicyclic hypergraphs

    math.CO 2025-06 conditional novelty 6.0 of 10

    For linear k-uniform bicyclic hypergraphs with fixed girth and number of edges, the paper determines which hypergraph is first and which is last in the spectral-moment order.

  3. Extremal Zagreb indices of bicyclic hypergraphs

    math.CO 2025-06 conditional novelty 5.0 of 10

    For linear bicyclic k-uniform hypergraphs, the maximum Zagreb index is attained by an explicit theta-like hypergraph, and the minimum by any hypergraph with maximum degree 2.

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