%0 Journal Article %T On H = 1/2 Surfaces in PSL_2(R,\¦Óau) %A Carlos Espinoza PeŁżafiel %J Mathematics %D 2010 %I arXiv %X We study the behavior of H = 1/2 surfaces immersed in PSL_2(R,\{\tau}au). %U http://arxiv.org/abs/1008.0879v3