The University of Pittsburgh, Department of Mathematics

Presents__The Edmund R. Michalik Distinguished Lecture in the Mathematical Sciences__

## Professor Martin Hairer

__Regius Professor of Mathematics__ of __The University of Warwick__.

## Taming infinities

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 mathematicians and physicists to tame these infinities. We will tip our toes into some of the mathematical aspects of these techniques and we will see how they have recently been used to make precise analytical statements about the solutions of some equations whose meaning was not even clear until now.

Reception Immediately Following the Lecture

This public lecture is part of an annual series in honor of Professor Edmund R. Michalik, established through a gift from the Michalik family.

For further information, email: __math@pitt.edu__

Phone: 412-624-8375

or visit __http://www.mathematics.pitt.edu__

### Location and Address

Ballroom, O'Hara Student Center