Covering the Edges of a Connected Graph by Paths
β Scribed by L. Pyber
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 316 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0095-8956
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β¦ Synopsis
We prove that every connected graph on n vertices can be covered by at most nΓ2+O(n 3Γ4 ) paths. This implies that a weak version of a well-known conjecture of Gallai is asymptotically true.
π SIMILAR VOLUMES
Let H=(V H , E H ) be a graph, and let k be a positive integer. A graph G=(V G , E G ) is H-coverable with overlap k if there is a covering of the edges of G by copies of H such that no edge of G is covered more than k times. Denote by overlap(H, G) the minimum k for which G is H-coverable with over
## Abstract An (__n, q__) graph has __n__ labeled points, __q__ edges, and no loops or multiple edges. The number of connected (__n, q__) graphs is __f(n, q)__. Cayley proved that __f(n, n__^β1^) = __n__^nβ2^ and Renyi found a formula for __f(n, n)__. Here I develop two methods to calculate the exp
## Abstract An edge of a 3βconnected graph is said to be __contractible__ if its contraction results in a 3βconnected graph. In this paper, a covering of contractible edges is studied. We give an alternative proof to the result of Ota and Saito (__Scientia__ (A) 2 (1988) 101β105) that the set of co