70 search results - page 9 / 14 » The complexity of counting graph homomorphisms |
MFCS
2007
Springer
14 years 1 months ago
2007
Springer
A tournament is a graph in which each pair of distinct vertices is connected by exactly one directed edge. Tournaments are an important graph class, for which isomorphism testing ...
TCBB
2010
13 years 2 months ago
2010
Recent techniques increase rapidly the amount of our knowledge on interactions between proteins. The interpretation of these new information depends on our ability to retrieve kno...
ICDT
2007
ACM
14 years 1 months ago
2007
ACM
Query containment is a fundamental problem of databases. Given two queries q1 and q2, it asks whether the set of answers to q1 is included in the set of answers to q2 for any datab...
TCS
2008
13 years 7 months ago
2008
Finding, counting and/or listing triangles (three vertices with three edges) in massive graphs are natural fundamental problems, which received recently much attention because of ...
STACS
1992
Springer
13 years 11 months ago
1992
Springer
We show that the graph isomorphism problem is low for PP and for C=P, i.e., it does not provide a PP or C=P computation with any additional power when used as an oracle. Furthermor...