The Extendability of Cayley Graphs Generated by Transposition Trees

Autor: Yongde Feng, Yanting Xie, Fengxia Liu, Shoujun Xu
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Mathematics, Vol 10, Iss 9, p 1575 (2022)
Druh dokumentu: article
ISSN: 2227-7390
DOI: 10.3390/math10091575
Popis: A connected graph Γ is k-extendable for a positive integer k if every matching M of size k can be extended to a perfect matching. The extendability number of Γ is the maximum k such that Γ is k-extendable. In this paper, we prove that Cayley graphs generated by transposition trees on {1,2,…,n} are (n−2)-extendable and determine that the extendability number is n−2 for an integer n≥3.
Databáze: Directory of Open Access Journals
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