The cohesiveness of a point of a graph
โ Scribed by Jin Akiyama; Frank Boesch; Hiroshi Era; Frank Harary; Ralph Tindell
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 184 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0028-3045
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Shee, S.-C. and Y.-S. Ho, The cordiality of one-point union of n copies of a graph, Discrete Mathematics 117 (1993) 225-243. In this paper we give an equivalent definition of a cordial graph. The definition implies a previous result of Cahit (1986); it also enables us to find infinite families of n
In 1998 Mathon constructed algebraically a class of partial geometries pg(q -1, (q 2 -1)/2, (q -1)/2), where q is an even power of 3. The point graph of these partial geometries is the Hermitian graph constructed by Taylor. In this paper a geometric construction of Mathon's partial geometries is giv
The hamiltonian path graph H(F) of a graph F is that graph having the same vertex set as F and in which two vertices u and u are adjacent if and only if F contains a hamiltonian u -u path. First, in response to a conjecture of Chartrand, Kapoor and Nordhaus, a characterization of nonhamiltonian grap
## Abstract The biparticity ฮฒ(__G__) of a graph __G__ is the minimum number of bipartite graphs required to cover __G__. It is proved that for any graph __G__, ฮฒ(__G__) = {log~2~ฯ(__G__)}. In view of the recent announcement of the Four Color Theorem, it follows that the biparticity of every planar