Skip to main content

A mathematical journey From the infinitely small to the infinitely large

Martin Hairer

Professor of mathematics at Imperial College London Fields Medal in 2014 (obtained for research conducted at UNIGE)

The tiny world of particles and atoms and the gigantic world of the entire universe are separated by about forty different scales of size. As we move from one to the other, the laws of nature can sometimes behave in drastically different ways, sometimes obeying quantum physics, general relativity, or Newton’s classical mechanics, not to mention other intermediate theories. Understanding the transformations that take place from one scale to another is one of the great classical questions in mathematics and theoretical physics. The aim of this talk is to explore how these questions still inform and motivate interesting problems in probability theory and why so-called toy models, despite their superficially playful character, can sometimes lead to certain quantitative predictions.

Before the lectures, from 17:30, the University’s public science labs, Scienscope, offer activities.

4 November 2020 - 18:30

Venue : Auditoire Piaget, Uni Dufour 24 rue Général-Dufour, 1204 Genève

Info : Simultaneous translation to French and English
- Lecture live streamed on this page.

Free entrance, on registration

Due to the health situation:

  • Face mask is mandatory in university buildings and for the duration of the event.
  • Dispensers of hydroalcoholic solution are available at the entrance.
  • The cleanliness of the premises is ensured in accordance with the UNIGE protection plan.

Public talks

Chaos: unpredictable but understandable
Chaos: unpredictable but understandable

2 November 2020 - 18:30

Etienne Ghys

Research Director at CNRS,
Professor at the École normale supérieure in Lyon
Permanent Secretary of the Academy of Science of France

More information
Disorder, chance and large numbers
Disorder, chance and large numbers

3 November 2020 - 18:30

Laure Saint-Raymond

Professor at the École normale supérieure in Lyon
Bôcher Memorial Prize in 2020

More information
The music of shapes
The music of shapes

5 November 2020 - 18:30

Alain Connes

Professor at the Collège de France,
at the Institut des hautes études scientifiques at the University of Paris-Saclay
and at Ohio State University, Columbus
Fields medal in 1982

More information
Mathematics : art or science?
Mathematics : art or science?

6 November 2020 - 18:30

Stanislav Smirnov

Professeur à l’Université de Genève
Médaille Fields en 2010

More information

Scientific journalist, physicist, mathematician
Director of Science Communication at the Fondation Geneva Science and Diplomacy Anticipator.

More information

Previous editions


Gravity, l'attraction universelle


La révolution génomique


Les secrets du soleil


Architecture moléculaire


La révolution quantique


Grandes épidémies: le retour ?


[r]évolution climatique ?