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arXiv 0811.2434math.CO
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极小子格定义的基线集对有限正方形格点的覆盖

Finite Square Lattice Vertex Cover by a Baseline Set Defined With a Minimum Sublattice

Richard J. Mathar

摘要:

由有限正方形点格的两个顶点定义的每一条无限直线包含(覆盖)这两个点和碰巧与这些点共线的点的子集(可能是空的)。这项工作的文件顶点子集的最低阶,使其完全子图的边缘相关联的无限直线的总和覆盖整个顶点(节点)。这是对将光信号发送到正方形阵列中的所有站(接收器)的问题的抽象,其中最小数量的站还配备有发射器以将光重定向到其他发射器。

英文摘要:

Each straight infinite line defined by two vertices of a finite square point lattice contains (covers) these two points and a - possibly empty - subset of points that happen to be collinear to these. This work documents vertex subsets of minimum order such that the sum of the infinite straight lines associated with the edges of their complete subgraph covers the entire set of vertices (nodes). This is an abstraction to the problem of sending a light signal to all stations (receivers) in a square array with a minimum number of stations also equipped with transmitters to redirect the light to other transmitters.

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