Emmanuel Roy (Paris 13) Non-singular Poisson suspensions

Thu, 07/03/201914:45-15:45
Ross 70
Poisson suspensions are random sets of points endowed with a transformation that displaces each point according to a single transformation of the sigma-finite space where the points lie. In this ongoing work, instead of dealing with measure-preserving transformations (which is the classical case), we are going to present our attempt to explore the non-singular case. The difficulties are counterbalanced by new tools that are trivial in the measure-preserving case but highly informative in the non-singular one.
We will present these tools as well as the first basic results we’ve obtained.
Joint work with Alexander Danilenko and Zemer Kosloff