IJFCS
2008
13 years 11 months ago
2008
In this paper, we look at the extension of Hedlund's characterization of cellular automata to the case of cellular automata in the hyperbolic plane. This requires an addition...
FSTTCS
2007
Springer
14 years 5 months ago
2007
Springer
We consider computational problems on covering graphs with bicliques (complete bipartite subgraphs). Given a graph and an integer k, the biclique cover problem asks whether the edg...