The g-Extra Connectivity of the Strong Product of Paths and Cycles
The g-Extra Connectivity of the Strong Product of Paths and Cycles
复制标题
路径和循环的强乘积的 g-Extra 连接性
DOI:
10.3390/sym14091900
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发表时间:
2022-08
期刊:
影响因子:
--
通讯作者:
Yingzhi Tian
中科院分区:
文献类型:
--
作者:
Qinze Zhu;Yingzhi Tian
Let G be a connected graph and g be a non-negative integer. A vertex set S of graph G is called a g-extra cut if G−S is disconnected and each component of G−S has at least g+1 vertices. The g-extra connectivity of G is the minimum cardinality of a g-extra cut of G if G has at least one g-extra cut. For two graphs G1=(V1,E1) and G2=(V2,E2), the strong product G1⊠G2 is defined as follows: its vertex set is V1×V2 and its edge set is {(x1,x2)(y1,y2)|x1=x2 and y1y2∈E2; or y1=y2 and x1x2∈E1; or x1x2∈E1 and y1y2∈E2}, where (x1,x2),(y1,y2)∈V1×V2. In this paper, we obtain the g-extra connectivity of the strong product of two paths, the strong product of a path and a cycle, and the strong product of two cycles.
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期刊:
Discret. Math.
影响因子:
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