2283 search results - page 113 / 457 » Bounds of Graph Characteristics |
CORR
2010
Springer
13 years 3 months ago
2010
Springer
This paper addresses the following questions for a given tree T and integer d 2: (1) What is the minimum number of degree-d subtrees that partition E(T)? (2) What is the minimum n...
LICS
2007
IEEE
14 years 2 months ago
2007
IEEE
We introduce the concept of locally excluded minors. Graph classes locally excluding a minor are a common generalisation of the concept of excluded minor classes and of graph clas...
COCO
2007
Springer
14 years 2 months ago
2007
Springer
We make progress in understanding the complexity of the graph reachability problem in the context of unambiguous logarithmic space computation; a restricted form of nondeterminism....
FCT
2009
Springer
13 years 12 months ago
2009
Springer
We show that the reachability problem for directed graphs that are either K3,3-free or K5-free is in unambiguous log-space, UL coUL. This significantly extends the result of Bour...
JCT
2011
13 years 2 months ago
2011
The circumference of a graph is the length of its longest cycles. Results of Jackson, and Jackson and Wormald, imply that the circumference of a 3-connected cubic n-vertex graph i...