Martin boundary of killed random walks on isoradial graphs - Archive ouverte HAL Access content directly
Journal Articles Potential Analysis Year : 2022

## Martin boundary of killed random walks on isoradial graphs

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Cédric Boutillier
Kilian Raschel
Alin Bostan
• Function : Author

#### Abstract

We consider killed planar random walks on isoradial graphs. Contrary to the lattice case, isoradial graphs are not translation invariant, do not admit any group structure and are spatially non-homogeneous. Despite these crucial differences, we compute the asymptotics of the Martin kernel, deduce the Martin boundary and show that it is minimal. Similar results on the grid $\mathbb Z^d$ are derived in a celebrated work of Ney and Spitzer.

### Dates and versions

hal-02422417 , version 1 (22-12-2019)
hal-02422417 , version 2 (05-02-2021)

### Identifiers

• HAL Id : hal-02422417 , version 2
• ARXIV :
• DOI :

### Cite

Cédric Boutillier, Kilian Raschel, Alin Bostan. Martin boundary of killed random walks on isoradial graphs. Potential Analysis, 2022, 57, pp.201-226. ⟨10.1007/s11118-021-09912-5⟩. ⟨hal-02422417v2⟩

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