In the fifth of his famous list of 23 problems, Hilbert asked if every topological group which was locally Euclidean was in fact a Lie group. Through the work o

From the Preface: "This book was written for the active reader. The first part consists of problems, frequently preceded by definitions and motivation, and some

Differential Galois theory is an important, fast developing area which appears more and more in graduate courses since it mixes fundamental objects from many di

This book provides a detailed exposition of a wide range of topics in geometric group theory, inspired by Gromov’s pivotal work in the 1980s. It includes clas