𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Weakly pancyclic graphs

✍ Scribed by Brandt, Stephan; Faudree, Ralph; Goddard, Wayne


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
517 KB
Volume
27
Category
Article
ISSN
0364-9024

No coin nor oath required. For personal study only.

✦ Synopsis


In generalizing the concept of a pancyclic graph, we say that a graph is ''weakly pancyclic'' if it contains cycles of every length between the length of a shortest and a longest cycle. In this paper it is shown that in many cases the requirements on a graph which ensure that it is weakly pancyclic are considerably weaker than those required to ensure that it is pancyclic. This sheds some light on the content of a famous metaconjecture of Bondy. From the main result of this


πŸ“œ SIMILAR VOLUMES


Weakly Pancyclic Graphs
✍ BΓ©la BollobΓ‘s; Andrew Thomason πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 145 KB

A graph is called weakly pancyclic if it contains cycles of all lengths between its girth and circumference. A substantial result of Ha ggkvist, Faudree, and Schelp (1981) states that a Hamiltonian non-bipartite graph of order n and size at least w(n&1) 2 Γ‚4x+2 contains cycles of every length l, 3 l

On the girth of hamiltonian weakly pancy
✍ BollobοΏ½s, BοΏ½la; Thomason, Andrew πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 130 KB πŸ‘ 2 views

A graph is called weakly pancyclic if it contains cycles of all lengths between its girth and circumference. In answer to a question of ErdΕ‘s, we show that a Hamiltonian weakly-pancyclic graph of order n can have girth as large as about 2 n/ log n. In contrast to this, we show that the existence of

Pancyclic oriented graphs
✍ Zeng Min Song πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 324 KB

## Abstract Let __D__ be an oriented graph of order __n__ ≧ 9 and minimum degree __n__ βˆ’ 2. This paper proves that __D__ is pancyclic if for any two vertices __u__ and __v__, either __uv__ β‰… __A(D)__, or __d__~__D__~^+^(__u__) + __d__~__D__~^βˆ’^(__v__) ≧ __n__ βˆ’ 3.

Locally Pancyclic Graphs
✍ Ladislav Stacho πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 215 KB

We prove the following theorem. Let G be a graph of order n and let W V(G). If |W | 3 and d G (x)+d G ( y) n for every pair of non-adjacent vertices x, y # W, then either G contains cycles C 3 ,

Pancyclic subgraphs of random graphs
✍ Choongbum Lee; Wojciech Samotij πŸ“‚ Article πŸ“… 2011 πŸ› John Wiley and Sons 🌐 English βš– 249 KB

## Abstract An __n__‐vertex graph is called pancyclic if it contains a cycle of length __t__ for all 3≀__t__≀__n__. In this article, we study pancyclicity of random graphs in the context of resilience, and prove that if __p__>__n__^βˆ’1/2^, then the random graph __G__(__n, p__) a.a.s. satisfies the f

Pancyclicity of connected circulant grap
✍ Bogdanowicz, Z. R. πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 299 KB πŸ‘ 1 views

The circulant G,(al,. . . , ak), where 0 < al < ... < a k < ( n + 1 ) / 2 , is defined as the vertex-transitive graph that has vertices ifal,. . . ,if a k (mod n) adjacent to each vertex i. In this work we show that the connected circulants of degree at least three contain all even cycles. In additi