APPROX
2005
Springer
14 years 5 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
14 years 6 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...