Multistable processes and localisability

Abstract

We use characteristic functions to construct alpha(x)-multistable measures and integrals, where the measures behave locally like alpha-stable measures, but with the stability index alpha(x) varying with time x. This enables us to construct alpha(x)-multistable processes on R, that is processes whose scaling limit at time x is an alpha(x)-stable process. We present several examples of such multistable processes and examine their localisability.