%0 Journal Article %T Selfdecomposability and selfsimilarity: a concise primer %A Nicola Cufaro Petroni %J Mathematics %D 2007 %I arXiv %R 10.1016/j.physa.2007.11.036 %X We summarize the relations among three classes of laws: infinitely divisible, selfdecomposable and stable. First we look at them as the solutions of the Central Limit Problem; then their role is scrutinized in relation to the Levy and the additive processes with an emphasis on stationarity and selfsimilarity. Finally we analyze the Ornstein-Uhlenbeck processes driven by Levy noises and their selfdecomposable stationary distributions, and we end with a few particular examples. %U http://arxiv.org/abs/0708.1239v3