Contents

Chapters in this book

1. Frontmatter I
2. Preface VII
3. Contents IX
4. Notes on Locally CAT(l) Spaces 1
5. Asynchronous Automatic Structures on Closed Hyperbolic Surface Groups 49
6. Genus of Powers in a Free Group 67
7. Isoperimetric Functions for Central Extensions 73
8. Groups Acting on Complexes and Complexes of Groups 79
9. The Generalized Tetrahedron Groups 99
10. Finiteness Properties of Asynchronously Automatic Groups 121
11. Retractions of Closed Manifolds with Nonpositive Curvature 135
12. On the Sub-Quadratic Isoperimetric Inequality 149
13. Isoperimetric Inequalities for Homogeneous Nilpotent Groups 159
14. Problems about Free Quotients of Groups 165
15. Some Problems in Geometric Group Theory 183