Brualdi-Hoffman-Turán problem of the gem

Fuente: arXiv
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Main Authors: Chen, Fan, Yuan, Xiying
Format: Preprint
Published: 2024
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author Chen, Fan
Yuan, Xiying
author_facet Chen, Fan
Yuan, Xiying
contents A graph is said to be $F$-free if it does not contain $F$ as a subgraph. Brualdi-Hoffman-Turán problem seeks to determine the maximum spectral radius of an $F$-free graph with given size. The gem consists of a path on $4$ vertices, along with an additional vertex that is adjacent to every vertex of the path. Concerning Brualdi-Hoffman-Turán problem of the gem, when the size is odd, Zhang and Wang [Discrete Math. 347 (2024) 114171] and Yu, Li and Peng [arXiv:2404. 03423] solved it. In this paper, we completely solve the Brualdi-Hoffman-Turán problem type problem of the gem.
format Preprint
id arxiv_https___arxiv_org_abs_2411_08345
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Brualdi-Hoffman-Turán problem of the gem
Chen, Fan
Yuan, Xiying
Combinatorics
A graph is said to be $F$-free if it does not contain $F$ as a subgraph. Brualdi-Hoffman-Turán problem seeks to determine the maximum spectral radius of an $F$-free graph with given size. The gem consists of a path on $4$ vertices, along with an additional vertex that is adjacent to every vertex of the path. Concerning Brualdi-Hoffman-Turán problem of the gem, when the size is odd, Zhang and Wang [Discrete Math. 347 (2024) 114171] and Yu, Li and Peng [arXiv:2404. 03423] solved it. In this paper, we completely solve the Brualdi-Hoffman-Turán problem type problem of the gem.
title Brualdi-Hoffman-Turán problem of the gem
topic Combinatorics
url https://arxiv.org/abs/2411.08345