JournalsggdVol. 12, No. 2Groups, Geometry, and DynamicsVolume 12, No. 2 (2018)DOI 10.4171/GGDISSN 1661-7207eISSN 1661-7215pp. 399–448von Neumann’s problem and extensions of non-amenable equivalence relationsLewis BowenDaniel HoffAdrian Ioanapp. 449–528Proper affine actions in non-swinging representationsIlia Smilgapp. 529–570Quasi-automorphisms of the infinite rooted 2-edge-coloured binary treeBrita E. A. NucinkisSimon St. John-Greenpp. 571–613A dense geodesic ray in the Out$(F_r)$-quotient of reduced Outer SpaceYael Algom-KfirCatherine Pfaffpp. 615–636Metric topological groups: their metric approximation and metric ultraproductsMichal Douchapp. 637–677Fundamental groups of aspherical manifolds and maps of non-zero degreeChristoforos Neofytidispp. 679–702Classifying virtually special tubular groupsDaniel J. Woodhousepp. 703–719The action of the mapping class group on the space of geodesic rays of a punctured hyperbolic surfaceBrian H. BowditchMakoto Sakumapp. 721–763Spaces of invariant circular orders of groupsHyungryul BaikEric Sampertonpp. 765–802Generators of split extensions of Abelian groups by cyclic groupsLuc Guyot

pp. 399–448von Neumann’s problem and extensions of non-amenable equivalence relationsLewis BowenDaniel HoffAdrian Ioana

pp. 529–570Quasi-automorphisms of the infinite rooted 2-edge-coloured binary treeBrita E. A. NucinkisSimon St. John-Green

pp. 571–613A dense geodesic ray in the Out$(F_r)$-quotient of reduced Outer SpaceYael Algom-KfirCatherine Pfaff

pp. 615–636Metric topological groups: their metric approximation and metric ultraproductsMichal Doucha

pp. 637–677Fundamental groups of aspherical manifolds and maps of non-zero degreeChristoforos Neofytidis

pp. 703–719The action of the mapping class group on the space of geodesic rays of a punctured hyperbolic surfaceBrian H. BowditchMakoto Sakuma