## Abstract A double Dudeney set in __K~n~__ is a multiset of Hamilton cycles in __K~n~__ having the property that each 2‐path in __K~n~__ lies in exactly two of the cycles. A double Dudeney set in __K~n~__ has been constructed when __n__ ≥ 4 is even. In this paper, we construct a double Dudeney se
Vertex coverings by monochromatic paths and cycles
✍ Scribed by A. Gyárfás
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 254 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
We survey some results on covering the vertices of 2-colored complete graphs by t w o paths or by t w o cycles Qf different color. W e show the role of these results i n determining path Ramsey numbers and in algorithms for finding long monochromatic paths or cycles in 2-colored complete graphs.
If c(xI
X ~, X ~+ ~ ) thenpi+, = x l , x 2 , . . . ,xi,xi+l. Stop. Ifc(xi+,&,) = c(xl,x2) thenPi+l =
📜 SIMILAR VOLUMES
For positive integers m 1 ; . . . ; m k , let f (m 1 ; . . . ; m k ) be the minimum order of a graph whose edges can be colored with k colors such that every vertex is in a clique of cardinality m i , all of whose edges have the ith color for all i ¼ 1; 2; . . . ; k. The value for k ¼ 2 was determin
## Abstract Bondy conjectured that every simple bridgeless graph has a small cycle double cover (SCDC). We show that this is the case for the lexicographic products of certain graphs and along the way for the Cartesian product as well. Specifically, if __G__ does not have an isolated vertex then __
For a graph G, let σ 3 (G) = min{deg G x + deg G y + deg G z: {x, y, z} is an independent set in G}. Enomoto et al. [Enowoto et al., J Graph Theory 20 (1995), 419-422] have proved that the vertex set of a 2-connected graph G of order n with σ 3 (G) ≥ n is covered by two cycles, edges or vertices. Ex