数学研究
數學研究
수학연구
JOURNAL OF MATHEMATICAL STUDY
2001年
1期
94-99
,共6页
k4同胚图%色等价%色唯一
k4同胚圖%色等價%色唯一
k4동배도%색등개%색유일
用k4(a,b,c,d,e,f)表示k4同胚图,其中a,b,c,d,e,f分别表示度为3的顶点间的道路的长.本文主要研究了两类k4同胚图的色唯一性,同时得到了几族新的不是色唯一的k4同胚图.
用k4(a,b,c,d,e,f)錶示k4同胚圖,其中a,b,c,d,e,f分彆錶示度為3的頂點間的道路的長.本文主要研究瞭兩類k4同胚圖的色唯一性,同時得到瞭幾族新的不是色唯一的k4同胚圖.
용k4(a,b,c,d,e,f)표시k4동배도,기중a,b,c,d,e,f분별표시도위3적정점간적도로적장.본문주요연구료량류k4동배도적색유일성,동시득도료궤족신적불시색유일적k4동배도.
The K4 Homeomorph is denoted by k4(a,b,c,d,e,f),in which the lengths of its six paths between pairs of degree-3 vertices are a,b,c,d,e,f respectively.We study the chromatic uniqueness and chromatic equivalence of two family of K4 Homeomorphs.And some K4 Homeomorphs that are not chromatically uniqued are also obtained.