**CBMS Regional Conference Series in Mathematics**

Volume: 113;
2010;
118 pp;
Softcover

MSC: Primary 20; 30; 32; 37;
Secondary 11; 14

Print ISBN: 978-0-8218-4986-6

Product Code: CBMS/113

List Price: $38.00

Individual Price: $30.40

**Electronic ISBN: 978-1-4704-1571-6
Product Code: CBMS/113.E**

List Price: $38.00

Individual Member Price: $30.40

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#### Supplemental Materials

# Families of Riemann Surfaces and Weil-Petersson Geometry

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*Scott A. Wolpert*

A co-publication of the AMS and CBMS

This book is the companion to the CBMS lectures of Scott Wolpert at Central Connecticut State University. The lectures span across areas of research progress on deformations of hyperbolic surfaces and the geometry of the Weil-Petersson metric. The book provides a generally self-contained course for graduate students and postgraduates. The exposition also offers an update for researchers; material not otherwise found in a single reference is included.

A unified approach is provided for an array of results. The exposition covers Wolpert's work on twists, geodesic-lengths and the Weil-Petersson symplectic structure; Wolpert's expansions for the metric, its Levi-Civita connection and Riemann tensor. The exposition also covers Brock's twisting limits, visual sphere result and pants graph quasi isometry, as well as the Brock-Masur-Minsky construction of ending laminations for Weil-Petersson geodesics. The rigidity results of Masur-Wolf and Daskalopoulos-Wentworth, following the approach of Yamada, are included. The book concludes with a generally self-contained treatment of the McShane-Mirzakhani length identity, Mirzakhani's volume recursion, approach to Witten-Kontsevich theory by hyperbolic geometry, and prime simple geodesic theorem.

Lectures begin with a summary of the geometry of hyperbolic surfaces and approaches to the deformation theory of hyperbolic surfaces. General expositions are included on the geometry and topology of the moduli space of Riemann surfaces, the \(CAT(0)\) geometry of the augmented Teichmüller space, measured geodesic and ending laminations, the deformation theory of the prescribed curvature equation, and the Hermitian description of Riemann tensor. New material is included on estimating orbit sums as an approach for the potential theory of surfaces.

A co-publication of the AMS and CBMS.

#### Table of Contents

# Table of Contents

## Families of Riemann Surfaces and Weil-Petersson Geometry

- Cover Cover11 free
- Title page iii4 free
- Contents v6 free
- Preface vii8 free
- Preliminaries 110 free
- Teichmüller space and horizontal strip deformations 1322
- Geodesic-lengths, twists and symplectic geometry 2332
- Geometry of the augmented Teichmüller space, part 1 3342
- Geometry of the augmented Teichmüller space, part 2 4352
- Geometry of the augmented Teichmüller space, part 3 5160
- Deformations of hyperbolic metrics and the curvature tensor 6574
- Collar expansions and exponential-distance sums 7584
- Train tracks and the Mirzakhani volume recursion 8392
- Mirzakhani prime simple geodesic theorem 99108
- Bibliography 109118
- Index 117126 free
- Back Cover Back Cover1130

#### Readership

Graduate students and research mathematicians interested in Riemann surfaces, moduli spaces of Riemann surfaces, and Teichmüller theory.

#### Reviews

...this book is that it introduces some topics that are at the frontier of current research, which are not discussed in other books on moduli spaces of Riemann surfaces. This book will be a good reference for researchers working in the field as well as those that just want to take a glimpse of the interconnection between different aspects of Teichmüller theory.

-- Mathematical Reviews

[The author] takes pains to present a good deal of guidance as regards the indicated research literature and, indeed, each chapter ends with a useful recommendation of further readings.

-- Michael Berg, MAA Online