
Representation Theory and Complex Analysis : Lectures Given at the C. I. M. E. Summer School Held in Venice, Italy, June 10-17 2004
by Cowling, M.; Frenkel, Edward; Kashiwara, Masaki; Valette, Alain; Vogan, David A.Rent Textbook
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Summary
Table of Contents
Applications of Representation Theory to Harmonic Analysis of Lie Groups (and Vice Versa) | p. 1 |
Basic Facts of Harmonic Analysis on Semisimple Groups and Symmetric Spaces | p. 2 |
Structure of Semisimple Lie Algebras | p. 2 |
Decompositions of Semisimple Lie Groups | p. 4 |
Parabolic Subgroups | p. 5 |
Spaces of Homogeneous Functions on G | p. 6 |
The Plancherel Formula | p. 8 |
The Equations of Mathematical Physics on Symmetric Spaces | p. 10 |
Spherical Analysis on Symmetric Spaces | p. 10 |
Harmonic Analysis on Semisimple Groups and Symmetric Spaces | p. 12 |
Regularity of the Laplace-Beltrami Operator | p. 16 |
Approaches to the Heat Equation | p. 18 |
Estimates for the Heat and Laplace Equations | p. 18 |
Approaches to the Wave and Schrodinger Equations | p. 20 |
Further Results | p. 21 |
The Vanishing of Matrix Coefficients | p. 22 |
Some Examples in Representation Theory | p. 22 |
Matrix Coefficients of Representations of Semisimple Groups | p. 24 |
The Kunze-Stein Phenomenon | p. 27 |
Property T | p. 28 |
The Generalised Ramanujan-Selberg Property | p. 29 |
More General Semisimple Groups | p. 31 |
Graph Theory and its Riemannian Connection | p. 31 |
Cayley Graphs | p. 32 |
An Example Involving Cayley Graphs | p. 33 |
The Field of p-adic Numbers | p. 34 |
Lattices in Vector Spaces over Local Fields | p. 35 |
Adeles | p. 36 |
Further Results | p. 37 |
Carnot-Caratheodory Geometry and Group Representations | p. 38 |
A Decomposition for Real Rank One Groups | p. 38 |
The Conformal Group of the Sphere in R[superscript n] | p. 38 |
The Groups SU(1, n + 1) and Sp(1, n + 1) | p. 41 |
References | p. 46 |
Ramifications of the Geometric Langlands Program | p. 51 |
Introduction | p. 51 |
The Unramified Global Langlands Correspondence | p. 56 |
Classical Local Langlands Correspondence | p. 61 |
Langlands Parameters | p. 61 |
The Local Langlands Correspondence for GL[subscript n] | p. 62 |
Generalization to Other Reductive Groups | p. 63 |
Geometric Local Langlands Correspondence over C | p. 64 |
Geometric Langlands Parameters | p. 64 |
Representations of the Loop Group | p. 65 |
From Functions to Sheaves | p. 66 |
A Toy Model | p. 68 |
Back to Loop Groups | p. 70 |
Center and Opers | p. 71 |
Center of an Abelian Category | p. 71 |
Opers | p. 73 |
Canonical Representatives | p. 75 |
Description of the Center | p. 76 |
Opers vs. Local Systems | p. 77 |
Harish-Chandra Categories | p. 81 |
Spaces of K-Invariant Vectors | p. 81 |
Equivariant Modules | p. 82 |
Categorical Hecke Algebras | p. 83 |
Local Langlands Correspondence: Unramified Case | p. 85 |
Unramified Representations of G(F) | p. 85 |
Unramified Categories [characters not reproducible]-Modules | p. 87 |
Categories of G[[t]]-Equivariant Modules | p. 88 |
The Action of the Spherical Hecke Algebra | p. 90 |
Categories of Representations and D-Modules | p. 92 |
Equivalences Between Categories of Modules | p. 96 |
Generalization to other Dominant Integral Weights | p. 98 |
Local Langlands Correspondence: Tamely Ramified Case | p. 99 |
Tamely Ramified Representations | p. 99 |
Categories Admitting ([characters not reproducible], I) Harish-Chandra Modules | p. 103 |
Conjectural Description of the Categories of ([characters not reproducible], I) Harish-Chandra Modules | p. 105 |
Connection between the Classical and the Geometric Settings | p. 109 |
Evidence for the Conjecture | p. 115 |
Ramified Global Langlands Correspondence | p. 117 |
The Classical Setting | p. 117 |
The Unramified Case, Revisited | p. 120 |
Classical Langlands Correspondence with Ramification | p. 122 |
Geometric Langlands Correspondence in the Tamely Ramified Case | p. 122 |
Connections with Regular Singularities | p. 126 |
Irregular Connections | p. 130 |
References | p. 132 |
Equivariant Derived Category and Representation of Real Semisimple Lie Groups | p. 137 |
Introduction | p. 137 |
Harish-Chandra Correspondence | p. 138 |
Beilinson-Bernstein Correspondence | p. 140 |
Riemann-Hilbert Correspondence | p. 141 |
Matsuki Correspondence | p. 142 |
Construction of Representations of G[subscript R] | p. 143 |
Integral Transforms | p. 146 |
Commutativity of Fig. 1 | p. 147 |
Example | p. 148 |
Organization of the Note | p. 151 |
Derived Categories of Quasi-abelian Categories | p. 152 |
Quasi-abelian Categories | p. 152 |
Derived Categories | p. 154 |
t-Structure | p. 156 |
Quasi-equivariant D-Modules | p. 158 |
Definition | p. 158 |
Derived Categories | p. 162 |
Sumihiro's Result | p. 163 |
Pull-back Functors | p. 167 |
Push-forward Functors | p. 168 |
External and Internal Tensor Products | p. 170 |
Semi-outer Hom | p. 171 |
Relations of Push-forward and Pull-back Functors | p. 172 |
Flag Manifold Case | p. 175 |
Equivariant Derived Category | p. 176 |
Introduction | p. 176 |
Sheaf Case | p. 176 |
Induction Functor | p. 179 |
Constructible Sheaves | p. 179 |
D-module Case | p. 180 |
Equivariant Riemann-Hilbert Correspondence | p. 181 |
Holomorphic Solution Spaces | p. 182 |
Introduction | p. 182 |
Countable Sheaves | p. 183 |
C[superscript infinity]-Solutions | p. 185 |
Definition of RHom[superscript top] | p. 186 |
DFN Version | p. 189 |
Functorial Properties of RHom[superscript top] | p. 190 |
Relation with the de Rham Functor | p. 192 |
Whitney Functor | p. 194 |
Whitney Functor | p. 194 |
The Functor RHom[characters not reproducible] | p. 195 |
Elliptic Case | p. 196 |
Twisted Sheaves | p. 197 |
Twisting Data | p. 197 |
Twisted Sheaf | p. 198 |
Morphism of Twisting Data | p. 199 |
Tensor Product | p. 200 |
Inverse and Direct Images | p. 200 |
Twisted Modules | p. 201 |
Equivariant Twisting Data | p. 201 |
Character Local System | p. 202 |
Twisted Equivariance | p. 202 |
Twisting Data Associated with Principal Bundles | p. 203 |
Twisting (D-module Case) | p. 204 |
Ring of Twisted Differential Operators | p. 205 |
Equivariance of Twisted Sheaves and Twisted D-modules | p. 207 |
Riemann-Hilbert Correspondence | p. 207 |
Integral Transforms | p. 208 |
Convolutions | p. 208 |
Integral Transform Formula | p. 209 |
Application to the Representation Theory | p. 210 |
Notations | p. 210 |
Beilinson-Bernstein Correspondence | p. 212 |
Quasi-equivariant D-modules on the Symmetric Space | p. 214 |
Matsuki Correspondence | p. 216 |
Construction of Representations | p. 217 |
Integral Transformation Formula | p. 219 |
Vanishing Theorems | p. 221 |
Preliminary | p. 221 |
Calculation (I) | p. 222 |
Calculation (II) | p. 224 |
Vanishing Theorem | p. 226 |
References | p. 229 |
List of Notations | p. 231 |
Index | p. 233 |
Amenability and Margulis Super-Rigidity | p. 235 |
Introduction | p. 235 |
Amenability for Locally Compact Groups | p. 236 |
Definition, Examples, and First Characterizations | p. 236 |
Stability Properties | p. 239 |
Lattices in Locally Compact Groups | p. 240 |
Reiter's Property (P[subscript 1]) | p. 241 |
Reiter's Property (P[subscript 2]) | p. 242 |
Amenability in Riemannian Geometry | p. 244 |
Measurable Ergodic Theory | p. 244 |
Definitions and Examples | p. 244 |
Moore's Ergodicity Theorem | p. 247 |
The Howe-Moore Vanishing Theorem | p. 249 |
Margulis' Super-rigidity Theorem | p. 252 |
Statement | p. 252 |
Mostow Rigidity | p. 252 |
Ideas to Prove Super-rigidity, k = R | p. 253 |
Proof of Furstenberg's Proposition 4.1 - Use of Amenability | p. 255 |
Margulis' Arithmeticity Theorem | p. 256 |
References | p. 257 |
Unitary Representations and Complex Analysis | p. 259 |
Introduction | p. 259 |
Compact Groups and the Borel-Weil Theorem | p. 264 |
Examples for SL(2, R) | p. 272 |
Harish-Chandra Modules and Globalization | p. 274 |
Real Parabolic Induction and the Globalization Functors | p. 284 |
Examples of Complex Homogeneous Spaces | p. 294 |
Dolbeault Cohomology and Maximal Globalizations | p. 302 |
Compact Supports and Minimal Globalizations | p. 318 |
Invariant Bilinear Forms and Maps between Representations | p. 327 |
Open Questions | p. 341 |
References | p. 343 |
Quantum Computing and Entanglement for Mathematicians | p. 345 |
The Basics | p. 346 |
Basic Quantum Mechanics | p. 346 |
Bits | p. 348 |
Qubits | p. 349 |
References | p. 350 |
Quantum Algorithms | p. 351 |
Quantum Parallelism | p. 351 |
The Tensor Product Structure of n-qubit Space | p. 352 |
Grover's Algorithm | p. 353 |
The Quantum Fourier Transform | p. 354 |
References | p. 355 |
Factorization and Error Correction | p. 355 |
The Complexity of the Quantum Fourier Transform | p. 356 |
Reduction of Factorization to Period Search | p. 359 |
Error Correction | p. 360 |
References | p. 362 |
Entanglement | p. 362 |
Measures of Entanglement | p. 363 |
Three Qubits | p. 365 |
Measures of Entanglement for Two and Three Qubits | p. 367 |
References | p. 368 |
Four and More Qubits | p. 369 |
Four Qubits | p. 369 |
Some Hilbert Series of Measures of Entanglement | p. 374 |
A Measure of Entanglement for n Qubits | p. 374 |
References | p. 376 |
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