%0 Journal Article %T Arithmetic aspects of self-similar groups %A Michael Kapovich %J Mathematics %D 2008 %I arXiv %X We prove that an irreducible lattice in a semisimple algebraic group is virtually isomorphic to an arithmetic lattice if and only if it admits a faithful self-similar action on a rooted tree of finite valency. %U http://arxiv.org/abs/0809.0323v2