**CBMS Regional Conference Series in Mathematics**

Volume: 117;
2012;
141 pp;
Softcover

MSC: Primary 20; 57;

Print ISBN: 978-0-8218-8800-1

Product Code: CBMS/117

List Price: $41.00

Individual Price: $32.80

**Electronic ISBN: 978-0-8218-9442-2
Product Code: CBMS/117.E**

List Price: $41.00

Individual Member Price: $32.80

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#### Supplemental Materials

# From Riches to Raags: 3-Manifolds, Right-Angled Artin Groups, and Cubical Geometry

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*Daniel T. Wise*

A co-publication of the AMS and CBMS

This book presents an introduction to the geometric group theory associated with nonpositively curved cube complexes. It advocates the use of cube complexes to understand the fundamental groups of hyperbolic 3-manifolds as well as many other infinite groups studied within geometric group theory.

The main goal is to outline the proof that a hyperbolic group \(G\) with a quasiconvex hierarchy has a finite index subgroup that embeds in a right-angled Artin group. The supporting ingredients of the proof are sketched: the basics of nonpositively curved cube complexes, wallspaces and dual CAT(0) cube complexes, special cube complexes, the combination theorem for special cube complexes, the combination theorem for cubulated groups, cubical small-cancellation theory, and the malnormal special quotient theorem. Generalizations to relatively hyperbolic groups are discussed. Finally, applications are described towards resolving Baumslag's conjecture on the residual finiteness of one-relator groups with torsion, and to the virtual specialness and virtual fibering of certain hyperbolic 3-manifolds, including those with at least one cusp.

The text contains many figures illustrating the ideas.

A co-publication of the AMS and CBMS.

#### Table of Contents

# Table of Contents

## From Riches to Raags: 3-Manifolds, Right-Angled Artin Groups, and Cubical Geometry

- Cover Cover11 free
- Title page iii4 free
- Contents vii8 free
- Acknowledgement xi12 free
- Note to reader xiii14 free
- Overview 116 free
- Nonpositively curved cube complexes 722
- Cubical disk diagrams, hyperplanes, and convexity 1530
- Special cube complexes 3146
- Virtual specialness of malnormal amalgams 4358
- Wallspaces and their dual cube complexes 5368
- Finiteness properties of the dual cube complex 6176
- Cubulating malnormal graphs of cubulated groups 6984
- Cubical small cancellation theory 7792
- Walls in cubical small-cancellation theory 95110
- Annular diagrams 101116
- Virtually special quotients 107122
- Hyperbolicity and quasiconvexity detection 115130
- Hyperbolic groups with a quasiconvex hierachy 121136
- The relatively hyperbolic setting 125140
- Applications 129144
- Bibliography 135150
- Index of notation and defined terms 139154 free
- Back Cover Back Cover1160

#### Readership

Graduate students and research mathematicians interested in low-dimensional topology and geometric group theory.