On the Gracefulness of Graphs C_n∪T_k
Song Qing-hua · Journal of East China Jiaotong University · 2009
C_n∪T_k is composed of cycle C_n and tree T_k.This paper gives the graceful labelings which are composed of unicyclic graph and firecracker-tree when n =3,4,6.Other labelings such as sequential labeling,harmonious labeling are given about C_n∪T_k,when T_k is a firecracker tree and a caterpillar.