Mathematics – Probability
Scientific paper
2011-12-14
Mathematics
Probability
12 pages
Scientific paper
We examine the question of whether a collection of random walks on a graph
can be coupled so that they never collide. In particular, we show that on the
complete graph on n vertices, with or without loops, there is a Markovian
coupling keeping apart Omega(n/log n) random walks, taking turns to move in
discrete time.
Angel Omer
Holroyd Alexander E.
Martin James
Wilson David B.
Winkler Peter
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