Sommaire

A Bers-like proof of the existence of train tracks for free group automorphisms
p. 1
The rhombic dodecahedron and semisimple actions of Aut(Fₙ) on CAT(0) spaces
p. 13
L²-homology and reciprocity for right-angled Coxeter groups
p. 27
On tame embeddings of solenoids into 3-space
p. 57
On the maximal exact structure of an additive category
p. 77
Gradient otopies of gradient local maps
p. 89