## Abstract It is proven that each maximal planar bipartite graph is decomposable into two trees. Β© 1993 John Wiley & Sons, Inc.
Maximal planar graphs of diameter two
β Scribed by Karen Seyffarth
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 1020 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
β¦ Synopsis
A maximal planar graph is a simple planar graph in which every face is a triangle. We show here that such graphs with maximum degree A and diameter two have no more than :A + 1 vertices. We also show that there exist maximal planar graphs with diameter two and exactly LiA + 1 J vertices.
π SIMILAR VOLUMES
A graph is vertex-critical if deleting any vertex increases its diameter. We construct, for each & 5 except &=6, a vertex-critical graph of diameter two on & vertices with at least , where c 2 is some constant. We also construct, for each & 5 except &=6, a vertex-critical graph of diameter two on &
## Abstract In this paper we obtain chromatic polynomials of connected 3β and 4βchromatic planar graphs that are maximal for positive integerβvalued arguments. We also characterize the class of connected 3βchromatic graphs having the maximum number of __p__βcolorings for __p__ β₯ 3, thus extending a
## Abstract A graph __H__ is __collapsible__ if for every subset X β __V(H), H__ has a spanning connected subgraph whose set of oddβdegree vertices is X. In any graph __G__ there is a unique collection of maximal collapsible subgraphs, and when all of them are contracted, the resulting contraction