Additive combinatorics is a relatively recent term coined to comprehend the developments of the more classical additive number theory, mainly focussed on proble

In this book the author aims to show the value of using topological methods in combinatorial group theory.

Basic work on two-dimensional homotopy theory dates back to K. Reidemeister and J. H. C. Whitehead. Much work in this area has been done since then, and this bo

This book is about the interplay between algebraic topology and the theory of infinite discrete groups. It is a hugely important contribution to the field of to