关于图的可区别染色的研究起源于移动通信的频率分配问题.本文定义了简单图G的一个4-邻点可区别全染色.对一个图G进行4-邻点可区别全染色所需的最少颜色数称为图G的4-邻点可区别全色数,记为x"4as(G).对于广义Petersen图P(n,k),6≤x"4as(P(n,k))≤7得到证明.
The study of distinguishing coloring in graphs is derived from the frequency assignment problem in mobile communications.This paper introduced the concept of 4-adjacent vertex distinguishing total coloring (4-avdtc) of a simple graph G.The minimum number of k colors required for G such that it satisfies a 4-avdtc is denoted as x"4as(G).For generalized Petersen graphs P(n,k),it was proved that 6 ≤ x"4as(P(n,k)) ≤ 7.