Residually finite non-exact groups

Abstract

We construct the first examples of residually finite non-exact groups. The construction is based on author's earlier construction of groups containing isometrically expanders using a graphical small cancellation.

final preprint version

Cited by in corpus (5)

• Warped cones, (non-)rigidity, and piecewise properties, with a joint appendix with Dawid Kielak
• Helly groups
• Superrigidity from Chevalley groups into acylindrically hyperbolic groups via quasi-cocycles
• Amenability versus non-exactness of dense subgroups of a compact group
• Graphical small cancellation and hyperfiniteness of boundary actions