Intersection graphs of L-shapes and segments in the plane

Intersection graphs of L-shapes and segments in the plane
复制标题

L 形和平面内线段的交图

DOI:
10.1016/j.dam.2016.01.028
复制
发表时间:
2016
影响因子:
1.1
通讯作者:
Felsner S
Felsner S
中科院分区:
数学3区
文献类型:
--
作者:
Felsner S

文献摘要

参考文献

被引文献

相似文献

L形是具有共同终点的水平段和垂直段的结合。它们有四个旋转:、和。K折弯路径是平面上的一条简单路径,其方向从水平到垂直变化k次。如果一个图允许一个交表示,其中每个顶点都由一个或、一条k弯路或一段线表示,那么这个图分别称为{}图、{,}图、Bk-VPG图或SEG图。受Middendorf和Pfeiffer(1992)的一个定理--每个{,}-图都是SEG-图的启发,我们研究了SEG-图类的几个已知的子类,证明了它们是{}-图,或对某个小常数k是Bk-VPG-图,我们证明了所有的平面3-树,平面图的所有线图,以及平面图的所有完全剖分都是{}-图。进一步证明了平面图的补是B17-VPG-图,完全剖分的补是B2-VPG-图。这里,完全细分是指每条边至少细分一次的图。
An L-shape is the union of a horizontal and a vertical segment with a common endpoint. These come in four rotations:,, and. A k-bend path is a simple path in the plane, whose direction changes k times from horizontal to vertical. If a graph admits an intersection representation in which every vertex is represented by an, an or, a k-bend path, or a segment, then this graph is called an {}-graph,{,}-graph, B k-VPG-graph or SEG-graph, respectively. Motivated by a theorem of Middendorf and Pfeiffer (1992), stating that every {,}-graph is a SEG-graph, we investigate several known subclasses of SEG-graphs and show that they are {}-graphs, or B k-VPG-graphs for some small constant k. We show that all planar 3-trees, all line graphs of planar graphs, and all full subdivisions of planar graphs are {}-graphs. Furthermore we show that complements of planar graphs are B 17-VPG-graphs and complements of full subdivisions are B 2-VPG-graphs. Here a full subdivision is a graph in which each edge is subdivided at least once.
DOI: 10.1137/1.9781611973105.120
发表时间: 2012
期刊: ArXiv
影响因子: --
作者:
S. Kobourov;T. Ueckerdt;Kevin Verbeek
通讯作者: Kevin Verbeek
DOI: 10.1007/s00453-006-0157-x
发表时间: 2007
期刊: Algorithmica
影响因子: 1.1
作者:
H. D. Fraysseix;P. D. Mendez
通讯作者: P. D. Mendez
DOI: 10.1016/j.disc.2012.01.024
发表时间: 2010
期刊: Discret. Math.
影响因子: --
作者:
Mathew C. Francis;Jan Kratochvíl;Tomás Vyskocil
通讯作者: Tomás Vyskocil
DOI: 10.1016/s0012-365x(97)81834-1
发表时间: 1998
期刊: Discret. Math.
影响因子: --
作者:
Jan Kratochvíl;A. Kuběna
通讯作者: A. Kuběna
平面图具有 1 串表示形式
DOI: 10.1007/s00454-009-9196-9
发表时间: 2010
影响因子: 0.8
作者:
Jérémie Chalopin;D. Gonçalves;P. Ochem
通讯作者: P. Ochem