On the Connectivity of Token Graphs of Trees

Abstract

Let $k$ and $n$ be integers such that $1\le k\le n-1$, and let $G$ be a simple graph of order $n$. The $k$-token graph $F_k(G)$ of $G$ is the graph whose vertices are the $k$-subsets of $V(G)$, where two vertices are adjacent in $F_k(G)$ whenever their symmetric difference is an edge of $G$. In this paper we show that if $G$ is a tree, then the connectivity of $F_k(G)$ is equal to the minimum degree of $F_k(G)$.

References in corpus (1)

• Constructing physically intuitive graph invariants

Cited by in corpus (1)

• Hamiltonicity of the Double Vertex Graph and the Complete Double Vertex Graph of some Join Graphs