Hamiltonicity of Token Graphs of Some Join Graphs
Hamiltonicity of Token Graphs of Some Join Graphs
复制标题
某些连接图的标记图的哈密顿性
DOI:
10.3390/sym13061076
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
A. Trujillo
中科院分区:
文献类型:
--
作者:
Luis Adame;Luis Manuel Rivera;A. Trujillo
Let G be a simple graph of order n with vertex set V(G) and edge set E(G), and let k be an integer such that 1 ≤ k ≤ n− 1. The k-token graph G{k} of G is the graph whose vertices are the k-subsets of V(G), where two vertices A and B are adjacent in G{k} whenever their symmetric difference A4B, defined as (A \ B) ∪ (B \ A), is a pair {a, b} of adjacent vertices in G. In this paper we study the Hamiltonicity of the k-token graphs of some join graphs. We provide an infinite family of graphs, containing Hamiltonian and non-Hamiltonian graphs, for which their k-token graphs are Hamiltonian. Our result provides, to our knowledge, the first family of non-Hamiltonian graphs for which it is proven the Hamiltonicity of their k-token graphs, for any 2 < k < n− 2.
影响因子:
1.3
作者:
Ouyang Y
通讯作者:
Ouyang Y