Contents

pp v-vi

Contributors

pp vii-vii

Names of Participants

pp viii-viii

Introduction

pp ix-xiii

Acknowledgments

pp xiv-xiv

PART 1 - FOUR-MANIFOLDS AND ALGEBRAIC SURFACES

pp 1-4

1 - Yang-Mills invariants of four-manifolds

pp 5-40

2 - On the topology of algebraic surfaces

pp 41-54

3 - The topology of algebraic surfaces with q = Pg = 0

pp 55-62

4 - On the homeomorphism classification of smooth knotted surfaces in the 4-sphere

pp 63-72

5 - Flat algebraic manifolds

pp 73-92

PART 2 - FLOER'S INSTANTON HOMOLOGY GROUPS

pp 93-96

6 - Instanton homology, surgery and knots

pp 97-114

7 - Instanton homology

pp 115-124

8 - Invariants for homology 3-spheres

pp 125-148

9 - On the Floer homology of Seifert fibered homology 3-spheres

pp 149-160

10 - Za-invariant SU(2) instantons over the four-sphere

pp 161-174

PART 3 - DIFFERENTIAL GEOMETRY AND MATHEMATICAL PHYSICS

pp 175-178

11 - Skyrme fields and instantons

pp 179-190

12 - Representations of braid groups and operators coupled to monopoles

pp 191-206

13 - Extremal immersions and the extended frame bundle

pp 207-230

14 - Minimal surfaces in quaternionic symmetric spaces

pp 231-236

15 - Three-dimensional Einstein-Weyl geometry

pp 237-246

16 - Harmonic Morphisms, conformal foliations and Seifert fibre spaces

pp 247-259