1097 search results - page 28 / 220 » Testing Graph Isomorphism |
MPC
2004
Springer
15 years 3 months ago
2004
Springer
In this paper we define Kleene algebra with tests in a slightly more general way than Kozen’s definition. Then we give an explicit construction of the free Kleene algebra with...
APPROX
2008
Springer
14 years 11 months ago
2008
Springer
Let H be a graph, and let CH(G) be the number of (subgraph isomorphic) copies of H contained in a graph G. We investigate the fundamental problem of estimating CH(G). Previous res...
DM
2008
14 years 9 months ago
2008
We prove that a K4-free graph G of order n, size m and maximum degree at most three has an independent set of cardinality at least 1 7 (4n - m - - tr) where counts the number of c...
JCT
2011
14 years 4 months ago
2011
Abstract. We generalize a theorem of Knuth relating the oriented spanning trees of a directed graph G and its directed line graph LG. The sandpile group is an abelian group associa...
ESA
2008
Springer
14 years 11 months ago
2008
Springer
Abstract. A level graph is a directed acyclic graph with a level assignment for each node. Such graphs play a prominent role in graph drawing. They express strict dependencies and ...