Amenability and hyperfiniteness for group actions on trees
By Pieter Spaas
Rigidity of Codimension One Higher Rank Actions
By Juan Camilo Arosemena Serrato
Laminations and structure theorems for group actions on the line - Part 1
By Michele Triestino
Homeomorphism groups of the Airplane and the Basilica Julia sets
By Bruno Duchesne