Super Spanning Connectivity of Augmented Cubes

Cheng-Kuan Lin1, Tung-Yang Ho2, Jimmy J.M.Tan1, Lih-Hsing Hsu3
1Department of Computer Science National Chiao Tung University, Hsinchu, Taiwan 30010, R.O.C.
2Department of Industrial Engineering and Management Ta Hwa Institute of Technology, Hsinchu, Taiwan 30740, R.O.C.
3Department of Computer Science and Information Engineering Providence University, Taichung, Taiwan 43301, R.O.C.

Abstract

A \(k\)-container \(C(u, v)\) of \(G\) between \(u\) and \(v\) is a set of \(k\) internally disjoint paths between \(u\) and \(v\). A \(k\)-container \(C(u,v)\) of \(G\) is a \(k^*\)-container if it contains all nodes of \(G\). A graph \(G\) is \(k^*\)-connected if there exists a \(k^*\)-container between any two distinct nodes. The spanning connectivity of \(G\), \(\kappa^*(G)\), is defined to be the largest integer \(k\) such that \(G\) is \(\omega^*\)-connected for all \(1 \leq \omega \leq k\) if \(G\) is an \(1^*\)-connected graph and undefined if otherwise. A graph \(G\) is super spanning connected if \(\kappa^*(G) = \kappa(G)\). In this paper, we prove that the \(n\)-dimensional augmented cube \(AQ_n\) is super spanning connected.