Graphs with 1-Hamiltonian-connected cubes
β Scribed by Linda Lesniak
- Book ID
- 103501291
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 344 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0095-8956
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π SIMILAR VOLUMES
## Abstract One of the most fundamental results concerning paths in graphs is due to Ore: In a graph __G__, if deg __x__ + deg __y__ β§ |__V__(__G__)| + 1 for all pairs of nonadjacent vertices __x, y__ β __V__(__G__), then __G__ is hamiltonianβconnected. We generalize this result using set degrees.
Let G be a 2-edge connected graph with a t least 5 vertices. For any given vertices a, b, c, and din G with a # b, there exists in G3 a hamiltonian path with endpoints a and b avoiding the edge cd, and there exists in G3 U {cd} a hamiltonian path with endpoints a and b and containing the edge cd. Al
In this paper it is shown that any rn-regular graph of order 2rn (rn 3 3), not isomorphic to K, , , , or of order 2rn + 1 (rn even, rn 3 4), is Hamiltonian connected, which extends a previous result of Nash-Williams. As a corollary, it is derived that any such graph contains at least rn Hamiltonian