Gyarf&, A., Graphs with k odd cycle lengths, Discrete Mathematics 103 (1992) 41-48. If G is a graph with k z 1 odd cycle lengths then each block of G is either KZk+2 or contains a vertex of degree at most 2k. As a consequence, the chromatic number of G is at most 2k + 2. For a graph G let L(G) deno
Existence of graphs with specified cycle lengths
β Scribed by William McCuaig
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 808 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
We prove the following two theorems. L,etn,ga3andletIr{3,..., g}. There exists an n-regular n-connected graph G such that for every i E (3, . . .,g}, GhasacycleofDengthiifandonlyifiEI.
L&m, da1 andletJc{O,l,... , d}. There exists an m-connected graph H such that for everyiE{O,l,...
, d}, H has a cycle of length v(H) -i if and only if i EJ
π SIMILAR VOLUMES
Bondy and Vince proved that every graph with minimum degree at least three contains two cycles whose lengths differ by one or two, which answers a question raised by Erdo Λs. By a different approach, we show in this paper that if G is a graph with minimum degree d(G) \ 3k for any positive integer k,
## Abstract Our main result is the following theorem. Let __k__ββ₯β2 be an integer, __G__ be a graph of sufficiently large order __n__, and __Ξ΄__(__G__)ββ₯β__n__/__k__. Then: __G__ contains a cycle of length __t__ for every even integer __t__βββ[4, __Ξ΄__(__G__)β+β1]. If __G__ is nonbipartite then
A graph is called weakly triangulated if it contains no chordless cycle on five or more vertices (also called hole) and no complement of such a cycle (also called antihole). Equivalently, we can define weakly triangulated graphs as antihole-free graphs whose induced cycles are isomorphic either to C
## Abstract Let __G__ = (__X, Y, E__) be a bipartite graph with __X__ = __Y__ = __n__. ChvΓ‘tal gave a condition on the vertex degrees of __X__ and __Y__ which implies that __G__ contains a Hamiltonian cycle. It is proved here that this condition also implies that __G__ contains cycles of every even