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Marc Henneaux presents his lecture of the year in the series les courTs du Collège de France Exceptional symmetry structures appear quite unexpectedly in the study of the behavior of solutions to the gravitational field equations (Einstein's equations or …

Due to the pandemic, Prof. Sanjay Subrahmanyam's lectures will not be held in public. They will be recorded and made available on our website at a later date. Thanks to his knowledge of archives scattered around the world, and his mastery of the languages …

Timothy Gowers presents his lecture of the year in the series les courTs du Collège de France Combinatorics is a field that tends to focus more on problem solving than on theory development. Nevertheless, the solutions to problems that are most celebrated …

A paradigm of the physics of interacting quantum systems, the Hubbard model has a status in this field similar to that of the Ising model in statistical physics. It is the simplest model to formulate, but one which we can hope will suffice to understand …

There are the visible, material libraries, made up of shelves and books that can be physically moved around. And then there are the invisible or immaterial libraries. Invisible libraries can be so for several reasons: because they are mental, because they …

In collaboration with Ching Chao-jung, Associate Professor, Kyoto University . Knowledge of Chinese is not required. …