Routing by matching on convex pieces of grid graphs

Routing by matching on convex pieces of grid graphs
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通过匹配网格图的凸块进行路由

DOI:
10.1016/j.comgeo.2022.101862
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发表时间:
2022
期刊:
Computational Geometry
影响因子:
--
通讯作者:
Yang, H.
Yang, H.
中科院分区:
--
文献类型:
--
作者:
Alpert, H.;Barnes, R.;Bell, S.;Mauro, A.;Nevo, N.;Tucker, N.;Yang, H.

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路由数是由Alon,Chung和Graham在1994年引入的图不变量,并且已经针对树和其他类别的图(如超立方体)进行了研究。它给出了对一组不同的标记进行排序所需的最小路由步骤数,每个顶点上放置一个标记,其中每个路由步骤交换一组不相交的相邻标记对。我们的主要定理推广了已知的估计:一个宽为w(R),高为h(R)的矩形格图R满足rt(R)∈ O(w(R)+ h(R)).本文证明了:对于被任意凸多边形包围的无限正方形格的子图P,有rt(P)∈ O(w(P)+ h(P)).
The routing number is a graph invariant introduced by Alon, Chung, and Graham in 1994, and it has been studied for trees and other classes of graphs such as hypercubes. It gives the minimum number of routing steps needed to sort a set of distinct tokens, placed one on each vertex, where each routing step swaps a set of disjoint pairs of adjacent tokens. Our main theorem generalizes the known estimate that a rectangular grid graph R with width w (R) and height h (R) satisfies rt (R)∈ O (w (R)+ h (R)). We show that for the subgraph P of the infinite square lattice enclosed by any convex polygon, we have rt (P)∈ O (w (P)+ h (P)).
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