arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1801.06404math.CO
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指数控制的线性规划方法

A linear programming method for exponential domination

Michael Dairyko, Michael Young

摘要:

对于图$G,$,如果对每个$v \in V(G),$都有$1 \le \sum_{d \in D} \left( 2 \right)^{1-dist(d,v)}$,则集合$D \subseteq V(G)$是多孔指数控制集,其中$dist(d,v)$表示最短$dv$路的长度,$G,$的多孔指数控制数表示$γ_e^*(G),$是多孔指数控制集的最小基数.对于任何图形$G,$的技术,推导出一种确定$γ_e^*(G).$的下限。具体地,对于网格图形$H,$线性规划用于锐化通过下限技术找到的边界。确定了King网格$\mathcal{K_n},$、斜网格$\mathcal{S_n},$和$n$维超立方体$Q_n.$的多孔指数控制数的上下界

英文摘要:

For a graph $G,$ the set $D \subseteq V(G)$ is a porous exponential dominating set if $1 \le \sum_{d \in D} \left( 2 \right)^{1-dist(d,v)}$ for every $v \in V(G),$ where $dist(d,v)$ denotes the length of the shortest $dv$ path. The porous exponential dominating number of $G,$ denoted $γ_e^*(G),$ is the minimum cardinality of a porous exponential dominating set. For any graph $G,$ a technique is derived to determine a lower bound for $γ_e^*(G).$ Specifically for a grid graph $H,$ linear programing is used to sharpen bound found through the lower bound technique. Lower and upper bounds are determined for the porous exponential domination number of the King Grid $\mathcal{K_n},$ the Slant Grid $\mathcal{S_n},$ and the $n$-dimensional hypercube $Q_n.$

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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