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: [email protected] (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).

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