Geodesic
On uniqueness of harmonic functions for random walks on the countable groups
Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 2 (1997), pp. 3-7 
S. M. Narimanyan. On uniqueness of harmonic functions for random walks on the countable groups. Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 2 (1997), pp. 3-7. http://geodesic.mathdoc.fr/item/UZERU_1997_2_a0/
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     title = {On uniqueness of harmonic functions for random walks on the countable groups},
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     year = {1997},
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Voir la notice de l'article provenant de la source Math-Net.Ru

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[4] A. Aves, “Limite de quotients paur des marches aleatories sur des groups”, Comptes Rendus Acad. Scient., 276:4 (1973), 317–320 | MR

[5] S. A. Molchanov, “Granitsa Martina pryamogo proizvedeniya markovskikh protsessov”, Sib. matem. zhurn., XI:2 (1970), 370–380 | Zbl