43 search results - page 9 / 9 » The game chromatic number of random graphs |
FOCS
2008
IEEE
13 years 11 months ago
2008
IEEE
We prove that approximating the Max Acyclic Subgraph problem within a factor better than 1/2 is Unique-Games hard. Specifically, for every constant ε > 0 the following holds:...
TCS
2010
13 years 3 months ago
2010
Cops and Robbers is a pursuit and evasion game played on graphs that has received much attention. We consider an extension of Cops and Robbers, distance k Cops and Robbers, where t...
SODA
2012
ACM
11 years 7 months ago
2012
ACM
The Densest k-subgraph problem (i.e. find a size k subgraph with maximum number of edges), is one of the notorious problems in approximation algorithms. There is a significant g...