Taming Infinities Fields Medallist Professor Martin Hairer Event

Some physical and mathematical theories have the unfortunate feature that if one takes them at face value, many quantities of interest appear to be infinite.

Various techniques usually going under the common name of "renormalisation" have been developed over the years to address this, allowing mathematics and physicist to tame these infinities. Professor Hairer will explore some of the mathematical aspects of these techniques and will see how they have recently been used to make precise analytical statements about the solution of some equations whose meaning was not even clear until now.