La forme de l'espace, des trous noirs au multivers
By Jean-Pierre Luminet
Des oscillations de Fourier aux ondes gravitationnelles : la théorie analytique de la propagation de l'information
By Ronald Coifman
Appears in collection : Summer School 2019 - Foliations and algebraic geometry
The Beauville-Bogomolov decomposition theorem asserts that any compact Kähler manifold with numerically trivial canonical bundle admits an étale cover that decomposes into a product of a torus, an irreducible, simply-connected Calabi-Yau, and holomorphic symplectic manifolds. With the development of the minimal model program, it became clear that singularities arise as an inevitable part of higher dimensional life. We will present recent works in which a singular version of the decomposition theorem is established.