This book provides a general framework for doing geometric group theory for many non-locally-compact topological transformation groups that arise in mathematica
Coarse geometry is the study of spaces (particularly metric spaces) from a 'large scale' point of view, so that two spaces that look the same from a great dista
This book lays the foundation for a theory of coarse groups: namely, sets with operations that satisfy the group axioms “up to uniformly bounded error”. The