Title
On light cycles in plane triangulations
Abstract
A subgraph of a plane graph is light if each of its vertices has a small degree in the entire graph. Consider the class T (5) of plane triangulations of minimum degree 5. It is known that each G ϵ T (5) contains a light triangle. From a recent result of Jendrol' and Madaras the existence of light cycles C 4 and C 5 in each G ϵ T (5) follows. We prove here that each G ϵ T (5) contains also light cycles C 6 , C 7 , C 8 and C 9 such that every vertex is of degree at most 11, 17, 29 and 41, respectively. Moreover, we prove that no cycle C k with k ⩾ 11 is light in the class T (5) .
Year
DOI
Venue
1999
10.1016/S0012-365X(98)00254-4
Discrete Mathematics
Keywords
Field
DocType
cycles,planar graph,52b10,plane triangulations,triangulation,05c10,05c38,light cycle,light subgraph,plane graph
Discrete mathematics,Combinatorics,Loop (graph theory),Graph power,Graph factorization,Cycle graph,String graph,Regular graph,Degree (graph theory),Planar graph,Mathematics
Journal
Volume
Issue
ISSN
197-198,
1-3
Discrete Mathematics
Citations 
PageRank 
References 
21
1.73
6
Authors
4
Name
Order
Citations
PageRank
Stanislav Jendrol'128338.72
Tomáš Madaras211211.15
Roman Soták312824.06
Zsolt Tuza41889262.52