珊瑚树的奇优美性

摘要

通过给出优美树、二分优美树、二分奇优美树以及奇优雅树的概念,运用树加点(TAV)的方法,构造珊瑚树,并证明其具有奇优美和奇优雅标号.%By gaving the concept of graceful tree,bipartite graceful tree,bipartite odd-graceful tree and odd-elegant tree,we constructed a coral tree by using the method of tree-add-vertex (TAV),and proved that it had the odd-graceful and odd-elegant labelling.