Intersection graphs of segments (the class SEG) and of other simple geometric objects in the plane are considered. The results fall into two main areas: how difficult is the membership problem for a given class and how large are the pictures needed to draw the representations. Among others, we prove
Intersection properties of graphs
β Scribed by Terry A. McKee
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 550 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
McKee, T.A., Intersection properties of graphs, Discrete Mathematics 89 (1991) 253-260.
For each graph-theoretic property, we define a corresponding 'intersection property', motivated by the natural relationship of paths with interval graphs, and of trees with chordal graphs. We then develop a simple formal language, based on vertices and paths, which supports transfer of selected information about the original property to its intersection property. For instance, a simple description of paths produces the asteroidal triple characterization of interval graphs.
π SIMILAR VOLUMES
Let G and H be two graphs of order n. If we place copies of G and H on a common vertex set, how much or little can they be made to overlap? The aim of this article is to provide some answers to this question, and to pose a number of related problems. Along the way, we solve a conjecture of Erd" os,
A graph is an intersection graph if it is possible to assign sets to its vertices so that adjacency corresponds exactly to nonempty intersection. If the sets assigned to vertices must belong to a pre-specified family, the resulting class of all possible intersection graphs is called an intersection
Hartman I.B.-A., I. Newman and R. Ziv, On grid intersection graphs, Discrete Mathematics 87 (1991) 41-52. A bipartite graph G = (X, Y; E) has a grid representation if X and Y correspond to sets of horizontal and vertical segments in the plane, respectively, such that (xi, y,) E E if and only if segm
## Abstract The intersection dimension of a bipartite graph with respect to a type __L__ is the smallest number __t__ for which it is possible to assign sets __A__~__x__~β{1, β¦, __t__} of labels to vertices __x__ so that any two vertices __x__ and __y__ from different parts are adjacent if and only