S5∨Cn的交叉数

摘要

利用完全3部图K1,5,n的交叉数的结果,继续对联图Sm∨Cn(m=5)的交叉数进行研究,得到了cr(S5∨Cn)=Z(6, n)+4⌊n2⌋+3.%By utilizing some results of the crossing number of complete multipartit graph of K1,5,n, We studies the crossing numbers of the join graph S5∨Cn is Z(6, n)+4⌊n2⌋+3.