Directed percolation and random walk
| dc.creator | Grimmett, Geoffrey | |
| dc.creator | Hiemer, Philipp | |
| dc.date | 2001-08-08 | |
| dc.date.accessioned | 2026-07-07T04:42:55Z | |
| dc.date.available | 2026-07-07T04:42:55Z | |
| dc.description | Techniques of `dynamic renormalization', developed earlier for undirected percolation and the contact model, are adapted to the setting of directed percolation, thereby obtaining solutions of several problems for directed percolation on $Z^d$ where $d \ge 2$. The first new result is a type of uniqueness theorem: for every pair $x$ and $y$ of vertices which lie in infinite open paths, there exists almost surely a third vertex $z$ which is joined to infinity and which is attainable from $x$ and $y$ along directed open paths. Secondly, it is proved that a random walk on an infinite directed cluster is transient, almost surely, when $d \ge 3$. And finally, the block arguments of the paper may be adapted to systems with infinite range, subject to certain conditions on the edge probabilities. | |
| dc.identifier | https://arxiv.org/abs/math/0108062 | |
| dc.identifier | http://arxiv.org/abs/math/0108062 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/61993 | |
| dc.subject | Probability | |
| dc.subject | Mathematical Physics | |
| dc.subject | 60K35, 82B43, 60G50, 60K37 | |
| dc.title | Directed percolation and random walk | |
| dc.type | text |