TY - GEN AU - López Pérez, Ginés AU - Medina Sabino, Rubén PY - 2021 UR - http://hdl.handle.net/10481/75335 AB - We study Banach spaces with a weak stable unit ball, that is Banach spaces where every convex combination of relatively weakly open subsets in its unit ball is again a relatively weakly open subset in its unit ball. It is proved that the class of L1... LA - eng TI - A characterization of the weak topology in the unit ball of purely atomic L1 preduals DO - 10.1016/j.jmaa.2022.126311 ER -