Speaker
Massimiliano Gubinelli
(University of Oxford)
Description
Scale-dependent observables are the basic concept of the renormalization group. I will present a recent formalisation of this idea in the context of the probabilistic approach to Euclidean QFT and how it gives naturally rise to various structures, in particular local diffusions called Wilson-Ito diffusions which generalise the ideas of Polchinski’s RG and also RG for stochastic equations.