1) All Ladders are the Lower Integral Sum Graph
梯子是下整和图
2) lower integral sum graph
下整和图
1.
A graph G is said to be an lower integral sum graph if it is isomorphic to the lower integral sum graph of some SQ+.
一个图G称为下整和图,若它同构于某个S Q+的下整和图。
2.
In this paper the definitions of lower integral sum graph and the lower integral sum number of a graph are introduced,some properties of lower integral sum graphs are given,and it is proved that the lower integral sum number of complete tripartite graph K_ m,n,q (m,n,q≥2) is 2.
定义了下整和图与图的下整和数,给出下整和图的结构性质,并证明完全三部图Km,n,q(m,n,q≥2)的下整和数为2。
3) (Exclusive,lower integral,integral)sum graph
(排斥,下整,整)和图
4) (Exclusive)lower integral sum graph
(排斥)下整和图
5) exclusive (lower integral) sum graph
排斥(下整)和图
6) graphs/integral sum graph
图/整和图
补充资料：梯子
1.登高的用具，一般用竹﹑木制成，供人逐阶上下。 2.喻上升的途径。
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参考词条