%0 Journal Article %T On the structure and arithmeticity of lattice envelopes %A Uri Bader %A Alex Furman %A Roman Sauer %J Mathematics %D 2014 %I arXiv %X We announce results about the structure and arithmeticity of all possible lattice embeddings of a class of countable groups which encompasses all linear groups with simple Zariski closure, all groups with non-vanishing first l2-Betti number, word hyperbolic groups, and, more general, convergence groups. %U http://arxiv.org/abs/1411.7332v1