Euler Systems

Karl Rubin, Professor of Mathematics at Stanford University, was awarded the Cole Prize of the American Mathematical Society in 1992. He has been a Guggenheim Fellow, a Sloan Fellow, and a National Science Foundation Presidential Young Investigator.

• Acknowledgments xi Introduction 3 Notation 6 Chapter 1. Galois Cohomology of p-adic Representations 9 1.1. p-adic Representations 9 1.2. Galois Cohomology 11 1.3. Local Cohomology Groups 12 1.4. Local Duality 18 1.5. Global Cohomology Groups 21 1.6. Examples of Selmer Groups 23 1.7. Global Duality 28 Chapter 2. Euler Systems: Definition and Main Results 33 2.1. Euler Systems 33 2.2. Results over K 36 2.3. Results over K,, 40 2.4. Twisting by Characters of Finite Order 43 Chapter 3. Examples and Applications 47 3.1. Preliminaries 47 3.2. Cyclotomic Units 48 3.3. Elliptic Units 55 3.4. Stickelberger Elements 55 3.5. Elliptic Curves 63 3.6. Symmetric Square of an Elliptic Curve 73 Chapter 4. Derived Cohomology Classes 75 4.1. Setup 75 4.2. The Universal Euler System 78 4.3. Properties of the Universal Euler System 80 4.4. Kolyvagin's Derivative Construction 83 4.5. Local Properties of the Derivative Classes 90 4.6. Local Behavior at Primes Not Dividing pr 92 4.7. Local Behavior at Primes Dividing r 98 4.8. The Congruence 102 Chapter 5. Bounding the Selmer Group 105 5.1. Preliminaries 105 5.2. Bounding the Order of the Selmer Group 106 5.3. Bounding the Exponent of the Selmer Group 114 Chapter 6. Twisting 119 6.1. Twisting Representations 119 6.2. Twisting Cohomology Groups 121 6.3. Twisting Euler Systems 122 6.4. Twisting Theorems 125 6.5. Examples and Applications 125 Chapter 7. Iwasawa, Theory 129 7.1. Overview 129 7.2. Galois Groups and the Evaluation Map 135 7.3. Proof of Theorem 2.3.2 141 7.4. The Kernel and Cokernel of the Restriction Map 145 7.5. Galois Equivariance of the Evaluation Maps 147 7.6. Proof of Proposition 7.1.7 151 7.7. Proof of Proposition 7.1.9 154 Chapter 8. Euler Systems and p-adic L-functions 163 8.1. The Setting 164 8.2. Perrin-Riou's p-adic L-function and Related Conjectures 166 8.3. Connection with Euler Systems when d- = 1 168 8.4. Example: Cyclotomic Units 171 8.5. Connection with Euler Systems when d- > 1 173 Chapter 9. Variants 175 9.1. Rigidity 175 9.2. Finite Primes Splitting Completely in K,,,IK 178 9.3. Euler Systems of Finite Depth 179 9.4. Anticyclotomic Euler Systems 180 9.5. Additional Local Conditions 183 9.6. Varying the Euler Factors 185 Appendix A. Linear Algebra 189 A.1. Herbrand Quotients 189 A.2. p-adic Representations 191 Appendix B. Continuous Cohomology and Inverse Limits 195 B.1. Preliminaries 195 B.2. Continuous Cohomology 195 B.3. Inverse Limits 198 B.4. Induced Modules 201 B.5. Semilocal Galois Cohomology 202 Appendix C. Cohomology of p-adic Analytic Groups 205 C.1. Irreducible Actions of Compact Groups 205 C.2. Application to Galois Representations 207 Appendix D. p-adic Calculations in Cyclotomic Fields 211 D.1. Local Units in Cyclotomic Fields 211 D.2. Cyclotomic Units 216 Bibliography 219 Index of Symbols 223 Subject Index 227