The *-Edge-Reinforced Random Walk - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2022

The *-Edge-Reinforced Random Walk

Résumé

We define a generalisation of the Edge-Reinforced Random Walk (ERRW) introduced by Coppersmith and Diaconis in 1986, called *-Edge-Reinforced Random Walk (*-ERRW), which can be seen as an extension of the r-dependent ERRW introduced by Bacallado (2011). Similarly as for the ERRW, it has a continuous-time counterpart, called *-Vertex-Reinforced Jump Process (*-VRJP), which itself generalises the Vertex- Reinforced Jump Process proposed by Werner in 2000 and initially studied by Davis and Volkov (2002, 2004). Under some assumptions on the initial weights, the *-ERRW is partially exchangeable in the sense of Diaconis and Freedman (1980), and thus it is a random walk in a random environment: we compute the law of that environment.

Dates et versions

hal-03795096 , version 1 (03-10-2022)

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Sergio Bacallado, Christophe Sabot, Pierre Tarrès. The *-Edge-Reinforced Random Walk. 2022. ⟨hal-03795096⟩
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