如果非负整数不增序列S={d1,d2,…,dn}中仅有k个数字恰好各出现t次,其他数字彼此不等,且S为图序列,则称S为G(k,t)图序列,文章构造了一类G(1,3)图序列.
Let S = (d1, d2,…, dn ) be a non-increasing sequence of non-negative integers, in which only k numbers appear t times respectively,all other numbers of the sequence are different,and S is graphic sequence. Then S is said to be a graphic sequence of G(k,t). In this paper,a graphic sequence of G(1,3) is constructed.