It makes use of Reduction techniques on the problem of the edge_number of Maximam SES,and the result follows: if a graph G is supereulerian,which has a subgraph H with at most one edge short of three edge_disjoint spanning trees,then the graph G satisfies
李霄民 王斌.极大欧拉生成子图边数的几个定理[J].重庆工商大学学报(自然科学版),2005,(1): LI Xiao-min, WANG Bin. Some theorems about the number of edges of maximum spanning Elerian subgraph[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2005,(1):