Martin boundary of random walks in convex cones

نویسندگان

چکیده

We determine the asymptotic behavior of Green function for zero-drift random walks confined to multidimensional convex cones. As a consequence, we prove that there is unique positive discrete harmonic these processes (up multiplicative constant); in other words, Martin boundary reduces singleton.

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ژورنال

عنوان ژورنال: Annales Henri Lebesgue

سال: 2022

ISSN: ['2644-9463']

DOI: https://doi.org/10.5802/ahl.130