APPROX
2005
Springer
13 years 10 months ago
2005
Springer
We introduce a “derandomized” analogue of graph squaring. This operation increases the connectivity of the graph (as measured by the second eigenvalue) almost as well as squar...
COCO
2007
Springer
13 years 11 months ago
2007
Springer
We present a deterministic logspace algorithm for solving S-T Connectivity on directed graphs if (i) we are given a stationary distribution of the random walk on the graph in whic...