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9 papers · 2 filters
A shape theorem for an epidemic model in dimension
Enrique Andjel, Nicolas Chabot, Ellen Saada
We prove a shape theorem for the set of infected individuals in a spatial epidemic model with 3 states (susceptible-infected-recovered) on , when there is no…
Regular -measures are not always Gibbsian
Roberto Fernández, Sandro Gallo, Grégory Maillard
Regular -measures are discrete-time processes determined by conditional expectations with respect to the past. One-dimensional Gibbs measures, on the other hand, are fields dete…
Branching Random Walks on Free Products of Groups
Elisabetta Candellero, Lorenz A. Gilch, Sebastian Müller
We study certain phase transitions of branching random walks (BRW) on Cayley graphs of free products. The aim of this paper is to compare the size and structural properties of the…
Limit theorems for one and two-dimensional random walks in random scenery
Fabienne Castell, Nadine Guillotin--Plantard, Françoise Pène
Random walks in random scenery are processes defined by , where and are two independent sequences of i.i.…
A crossover for the bad configurations of random walk in random scenery
Sébastien Blachère, Frank den Hollander, Jeffrey E. Steif
In this paper, we consider a random walk and a random color scenery on Z. The increments of the walk and the colors of the scenery are assumed to be i.i.d. and to be independent of…
K-independent percolation on trees
Pierre Mathieu, Christoph Temmel
Consider the class of k-independent bond, respectively site, percolations with parameter p on an infinite tree T. We derive tight bounds on p for both a.s. percolation and a.s. non…