## Abstract It is shown that some classes of cyclically 5βedgeβconnected cubic planar graphs with only one type of face besides pentagons contain nonβHamiltonian members and have shortness coefficients less than unity.
Enumeration of cyclically 4-connected cubic graphs
β Scribed by Nicholas C. Wormald
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 550 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The number of the isomorphism classes of n-fold coverings of a graph G is enumerated by the authors (Canad.
We use the principle of inclusion and exclusion to enumerate labeled cubic graphs, without resort to the superposition theory of Read. This work was motivated by the cubic array representation of cubic graphs in the studies of generating functions of 3n& j coefficients in angular momentum theory.
Let f (n) be the minimum number of cycles present in a 3-connected cubic graph on n vertices. In 1986, C. A. Barefoot, L. Clark, and R. Entringer (Congr. Numer. 53, 1986) showed that f (n) is subexponential and conjectured that f (n) is superpolynomial. We verify this by showing that, for n sufficie
Thomassen conjectured that every 4-connected line graph is hamiltonian. Here we shall see that 4-connected line graphs of claw free graphs are hamiltonian connected.
## Abstract A __parallel minor__ is obtained from a graph by any sequence of edge contractions and parallel edge deletions. We prove that, for any positive integer __k__, every internally 4βconnected graph of sufficiently high order contains a parallel minor isomorphic to a variation of __K__~4,__k