%0 Journal Article %A A. V. Malyutin %T Quasimorphisms, random walks, and transient subsets in countable groups %J Zapiski Nauchnykh Seminarov POMI %D 2011 %P 210-236 %V 390 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2011_390_a8/ %G en %F ZNSL_2011_390_a8