Let IGI be the number of vertices of a graph G and to(G) be the density of G. We call a graph G packed if the clique graph K(G) of G has exactly 2 IGI-O'(G) cliques. We correct the characterization of clique graphs of packed graphs given in Theorem 3.2 of Hedman [3]. All graphs considered here are f
Clique graphs of time graphs
β Scribed by Bruce Hedman
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 517 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0095-8956
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Clique-gated graphs form an extension of quasi-median graphs. Two characterizations of these graphs are given and some other structural properties are obtained. An O(nm) algorithm is presented which recognizes clique-gated graphs. Here n and m denote the numbers of vertices and edges of a given grap
For each natural number n, denote by G(n) the set of all numbers c such that there exists a graph with exactly c cliques (i.e., complete subgraphs) and n vertices. We prove the asymptotic estimate Ia(n)l = 0(2"n -z/5) and show that all natural numbers between n + 1 and 2 "-6"5~6 belong to G(n). Thus
## Abstract The clique graph __K__(__G__) of a graph is the intersection graph of maximal cliques of __G.__ The iterated clique graph __K__^__n__^(__G__) is inductively defined as __K__(K^nβ1^(__G__)) and __K__^1^(__G__) = __K__(__G__). Let the diameter diam(__G__) be the greatest distance between
## Abstract Both the line graph and the clique graph are defined as intersection graphs of certain families of complete subgraphs of a graph. We generalize this concept. By a __k__βedge of a graph we mean a complete subgraph with __k__ vertices or a clique with fewer than __k__ vertices. The __k__β