Eigenvalues of Hypergraph Products and Reciprocal Eigenvalue Property

Fuente: arXiv
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Main Authors: Shetty, Shashwath S, Bhat, K Arathi
Format: Preprint
Published: 2026
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author Shetty, Shashwath S
Bhat, K Arathi
author_facet Shetty, Shashwath S
Bhat, K Arathi
contents Spectral hypergraph theory has recently attracted considerable interest as it provides a natural framework for modeling higher-order relationships beyond classical graphs. In this setting, eigenvalues of adjacency, Laplacian, and signless-Laplacian hypermatrices play an important role in understanding the underlying structure of hypergraphs. In this work, we study the adjacency, Laplacian, and signless-Laplacian eigenvalues of the join, Kronecker, and corona products of hypergraphs, and examine how these spectra behave under such operations. These investigations help in better understanding the interplay between hypergraph structure and spectral properties. The reciprocal eigenvalue property is of particular interest due to the spectral symmetries it reflects. Motivated by this, we extend the notion of reciprocal eigenvalue property to hypergraphs and show that power hypertrees do not satisfy this property.
format Preprint
id arxiv_https___arxiv_org_abs_2604_23365
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Eigenvalues of Hypergraph Products and Reciprocal Eigenvalue Property
Shetty, Shashwath S
Bhat, K Arathi
Combinatorics
Spectral Theory
05C65, 15A69, 15A18
Spectral hypergraph theory has recently attracted considerable interest as it provides a natural framework for modeling higher-order relationships beyond classical graphs. In this setting, eigenvalues of adjacency, Laplacian, and signless-Laplacian hypermatrices play an important role in understanding the underlying structure of hypergraphs. In this work, we study the adjacency, Laplacian, and signless-Laplacian eigenvalues of the join, Kronecker, and corona products of hypergraphs, and examine how these spectra behave under such operations. These investigations help in better understanding the interplay between hypergraph structure and spectral properties. The reciprocal eigenvalue property is of particular interest due to the spectral symmetries it reflects. Motivated by this, we extend the notion of reciprocal eigenvalue property to hypergraphs and show that power hypertrees do not satisfy this property.
title Eigenvalues of Hypergraph Products and Reciprocal Eigenvalue Property
topic Combinatorics
Spectral Theory
05C65, 15A69, 15A18
url https://arxiv.org/abs/2604.23365