SMS scnews item created by Larissa Fedunik-Hofman at Mon 8 Feb 2021 1301
Type: Seminar
Distribution: World
Expiry: 3 Feb 2022
Calendar1: 3 Feb 2021 2000-2110
CalLoc1: Online via Zoom
CalTitle1: SMRI-MATRIX Symposium with Martin Hairer: Colloquium talk
Auth: larissaf@10.165.79.147 (lfed9203) in SMS-LDAP
Taming Infinities: Martin Hairer Colloquium recording
SMRI-MATRIX Symposium with Martin Hairer
Prof. Sir Martin Hairer's colloquium talk
'Taming Infinities' is a widely accessible discussion of the theories that describe some of the most
fundamental aspects of nature and how they have recently been used in probability
theory.
Watch the video on the
SMRI website or
YouTube.
Abstract: 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! What's worse, this doesn't just happen for some exotic theories, but in the
standard theories describing some of the most fundamental aspects of nature. 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 dip our toes into some of the conceptual and mathematical aspects of
these techniques and we will see how they have recently been used in probability theory
to study equations whose meaning was not even clear until recently.
This session was recorded as part of the SMRI-MATRIX Online
Symposium with Martin Hairer (3–19 February 2021).