Upper bounds for positive semidefinite propagation time
Upper bounds for positive semidefinite propagation time
复制标题
正半定传播时间的上限
DOI:
10.1016/j.disc.2022.112967
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发表时间:
2022
影响因子:
0.8
通讯作者:
Zhang, Yaqi
中科院分区:
文献类型:
--
作者:
Hogben, Leslie;Hunnell, Mark;Liu, Kevin;Schuerger, Houston;Small, Ben;Zhang, Yaqi
The tight upper bound pt+(G)≤⌈| V (G)|− Z+(G) 2⌉ is established for the positive semidefinite propagation time of a graph in terms of its positive semidefinite zero forcing number. To prove this bound, two methods of transforming one positive semidefinite zero forcing set into another and algorithms implementing these methods are presented. Consequences of the bound, including a tight Nordhaus-Gaddum sum upper bound on positive semidefinite propagation time, are established.
影响因子:
0.7
作者:
Travis Peters
通讯作者:
Travis Peters