6 papers · 1 filter
Computable criteria for ballisticity of random walks in elliptic random environment
Alejandro F. Ramírez, Rodrigo Ribeiro
We consider random walks in i.i.d. elliptic random environments which are not uniformly elliptic. We introduce a computable condition in dimension and a general condition val…
Spread of Infection over P.A. random graphs with edge insertion
Caio Alves, Rodrigo Ribeiro
In this work we investigate a bootstrap percolation process on random graphs generated by a random graph model which combines preferential attachment and edge insertion between pre…
Asymptotic Results of a Multiple-entry Reinforcement Process
Caio Alves, Rodrigo Ribeiro, Daniel Valesin
We introduce a class of stochastic processes with reinforcement consisting of a sequence of random partitions , where is a partition of…
Tree Builder Random Walk: recurrence, transience and ballisticity
Giulio Iacobelli, Rodrigo Ribeiro, Glauco Valle +1
The Tree Builder Random Walk is a special random walk that evolves on trees whose size increases with time, randomly and depending upon the walker. After every s steps of the walke…
Agglomeration in a preferential attachment random graph with edge-steps
Caio Alves, Rodrigo Ribeiro, Remy Sanchis
In this paper we investigate geometric properties of graphs generated by a preferential attachment random graph model with edge-steps. More precisely, at each time …
Concentration in the Generalized Chinese Restaurant Process
Alan Pereira, Roberto I. Oliveira, Rodrigo Ribeiro
The Generalized Chinese Restaurant Process (GCRP) describes a sequence of exchangeable random partitions of the numbers . This process is related to the Ewens sampli…