On a family of Levy processes without support in S'

Abstract

The distributional support of the sample paths of L\'evy processes is an important issue for the construction of sparse statistical models, theories of integration in infinite dimensions and the existence of generalized solutions of stochastic partial differential equations driven by L\'evy white noise. Here one considers a family K_\alpha (0<\alpha<2) of L\'evy processes which have no support in S'. For 1<\alpha<2 they are supported in K', the space of distributions of exponential type and for 0<\alpha=<1 on similar spaces of power exponential type.