This book deals with topics in the area of Lévy processes and infinitely divisible distributions such as Ornstein-Uhlenbeck type processes, selfsimilar additive processes and multivariate subordination. These topics are developed around a decreasing chain of classes of distributions Lm, m = 0,1,..., , from the class L0 of selfdecomposable distributions to the class L generated by stable distributions through convolution and convergence.

The book is divided into five chapters. Chapte ...