Matching Preclusion and Conditional Matching Preclusion of Exchanged Crossed Cube

Let $F$ be an edge subset of G. A subset $F$ is a matching preclusion set that$G-F$ has no a perfect matching or an almost perfect matching. The matching preclusion number of G, denoted by mp(G), is the minimum size of $|F|$ whose deletion in $G$ results in neither a perfect matching nor an almost perfect matching in $G-F$.The conditional matching preclusion number of $G$, denoted by $mp_1(G)$, is the minimum size of $|F|$ whose deletion in $G$ with no isolated vertices and has neither a perfect matching nor the almost perfect matching in $G-F$.In this paper, we obtain the matching preclusion number and the conditional matching preclusion number of exchanged crossed cube