Sommaire du Fascicule no. 1

On the cuspidal cohomology of S-arithmetic subgroups of reductive groups over number fields
The universal Vassiliev-Kontsevich invariant for framed oriented links
Uniqueness of linear periods

Sommaire du Fascicule no. 2

On diophantine equations involving sums of powers with quadratic characters as coefficients, II
An improved bound for the degree of smooth surfaces in 𝐏 4 not of general type
A Tate sequence for global units
Representation-theoretic proof of the inner product and symmetry identities for Macdonald's polynomials
Extension categories and their homotopy

Sommaire du Fascicule no. 3

Etendues and stacks as bicategories of fractions
On some modular representations of affine Kac-Moody algebras at the critical level
On Bănică sheaves and Fano manifolds
Le crible à vecteurs
A corrigendum to the paper “Connecting direct limit topologies with metrics on infinite-dimensional manifolds”