Search results

Abstract The session will explore the singular dialogue between a collection of stone images, the rood screen and choir screen of Notre-Dame, and a collection of ink images, a "   Bible historiée toute figurée   " painted around 1340, which was inspired …

Abstract The standard cosmological model with cold dark matter provides an accurate account of the cosmological background and large-scale structures of the Universe, while numerical simulations based on this model successfully reproduce many observed …

Abstract In massive galaxies, dark matter is only detectable in the outer parts, in the form of a dark halo. The best tracer for the outer parts is the HI-21cm atomic gas, which traces the total mass. Inner galaxies, high-spatial-resolution ionized gas …

Abstract The aim of this paper is to discuss recent progress on the convergence problem in mean-field control theory and the study of associated nonlinear PDEs. We are interested in optimal control problems involving a large number of interacting …

Abstract This seminar will present a brand-new version of the Nice model, where the planets' resonant chain is constructed from simulations of planetary migration in a low-viscosity protoplanetary disk. In this scenario, Jupiter and Saturn are captured in …

One-hour lecture   , followed by the seminar. Abstract The new versions of the Nice model are based on the observation that the orbits of the giant planets should be in mutual resonance at the moment of gas dissipation, after the migration phase induced …

Abstract The media regularly report that the state of the atmosphere is getting worse, and that mankind is primarily responsible . Scientists now have access to an impressive array of observations (particularly by satellite). But for non-specialists, it's …

Abstract Aerosols are particles -   solids or liquids   - suspended in the atmosphere. Natural aerosols include dust from desert areas, salt from ocean spray, volcanic ash and semi-burnt particles from fires. Human activities generate other types of …

Documents and media Download support …

Abstract We briefly describe another probabilistic model, the random covering model of a hyperbolic surface, in order to be able to state the Magee-Naud-Puder and Magee-Hide theorems concerning the spectral hole of these surfaces. Finally, we turn to the …

Introduction by Laurent Coulon followed by Sylvie Donnat (Univ. Lille, HALMA). Abstract Textual amulets on papyrus from Ramesside Egypt take the form of sheets on which drawings and continuous hieratic text were traced. Once inscribed, the leaflet was …

The lecture is only available in audio format. …

Abstract The Big Bang theory describes an expanding Universe, in which large structures are formed by gravitational collapse. These are the galaxies, filaments, walls and cosmic voids that surround us. The embryos of these structures are the quantum …