## a b s t r a c t For an ordered set W = {w 1 , w 2 , . . . , w k } of vertices and a vertex v in a connected graph G, the ordered k-vector r(v|W representation of v with respect to W , where d(x, y) is the distance between the vertices x and y. The set W is called a resolving set for G if disti
On randomly Hamiltonian graphs
β Scribed by Carsten Thomassen
- Publisher
- Springer
- Year
- 1973
- Tongue
- English
- Weight
- 801 KB
- Volume
- 200
- Category
- Article
- ISSN
- 0025-5831
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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.
Suppose G is a graph, F is a l-factor of G. G is called F-Hamiltonian, if there exists a Hamiltonian cycle containing F in G. In this paper, two necessary and sufficient conditions for a general graph and a bipartite graph being F-Hamiltonian are provided, respectively.
## Abstract A graph is defined to be randomly matchable if every matching of __G__ can be extended to a perfect matching. It is shown that the connected randomly matchable graphs are precisely __K__~2__n__~ and __K~n,n~__ (__n__ β₯ 1).