%0 Journal Article %T Groupoids and inverse semigroups associated to W*-algebras %A Anatol Odzijewicz %A Aneta Sli£żewska %J Mathematics %D 2011 %I arXiv %X We investigate the Banach Lie groupoids and inverse semigroups naturally associated to W*-algebras. We also present statements describing relationship between these groupoids and the Banach Poisson geometry which follows in the canonical way from the W*-algebra structure. %U http://arxiv.org/abs/1110.6305v2