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arXiv 2502.04087math.COcs.DM
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乘积图中的高效 k-限支配广播

Efficient $k$-limited Dominating Broadcasts in Product Graphs

Bharadwaj, A. Senthil Thilak

AI总结:

本文提出高效 k-限支配广播(k-ELDB)概念,统一高效支配集与 k-限支配广播,证明确定 mcr(G) 对一般图是 NP-完全的,并研究标准图及其乘积图上的 mcr(G) 值。

摘要:

在图 G 中,若顶点子集 S 使得图中每个顶点都恰好被 S 中的一个顶点唯一支配,则称 S 为高效支配集(EDS)。若一个图包含 EDS,则称该图可被高效支配。此外,若函数 f: V(G) → {0, 1, 2, …, k} 满足对于每个顶点 u ∈ V(G),都存在一个顶点 v 且 f(v) ≥ 1,使得 d(u, v) ≤ f(v),则称 f 为 k-限支配广播。此时称顶点 u 被顶点 v 支配。本文统一上述两个概念,研究图中的高效 k-限广播支配。若 k-限支配广播 f 使得图中每个顶点恰好被支配一次,则称 f 为高效 k-限支配广播(k-ELDB)。对于给定图 G,使其具有 k-ELDB 的最小 k 值定义为 mcr(G)。我们证明确定 mcr(G) 对一般图是 NP-完全的,并探讨标准图及其乘积图上的 mcr(G) 值和其他相关参数。

英文摘要:

In a graph $ G $, a subset of vertices $ S $ is called an efficient dominating set (EDS) if every vertex in the graph is uniquely dominated by exactly one vertex in $ S $. A graph is said to be efficiently dominatable if it contains an EDS. Additionally, a function $ f: V(G) \rightarrow \{0, 1, 2, \dots, k\} $ is termed a $ k $-limited dominating broadcast if, for every vertex $ u \in V(G) $, there exists a vertex $ v $, with $ f(v) \geq 1$ such that $ d(u, v) \leq f(v) $. A vertex $u$ is said to be dominated by a vertex $v$. In this work, we unify these two concepts to explore the notion of efficient $k$-limited broadcast domination in graphs. A $ k $-limited dominating broadcast $f$ is called an efficient $k$-limited dominating broadcast ($k$-$ELDB$) if each vertex in the graph is dominated exactly once. The minimum value of $k$ for which the given graph $G$ has $k$-$ELDB$ is defined as $mcr(G)$. We prove determining $mcr(G)$ is NP-Complete for general graphs and explore the $mcr(G)$ values and other related parameters on standard graphs and their products.

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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