Joseph Silk

On the Shores of the Unknown
A Short History of the Universe

240 pages 16 line diagrams 18 colour plates
Hardback | ISBN: 0-521-83627-1 | available from November 2004

In this fascinating book, astronomer Joseph Silk explores the Universe from its beginnings to its ultimate fate. He shows how cosmologists study cosmic fossils and relics from the distant past to construct theories of the birth, evolution and future of the Universe. Stars, galaxies, dark matter and dark energy are described, as successive chapters detail the evolution of the Universe from a fraction of a microsecond after the Big Bang. Silk describes how physicists apply theories of subatomic particles to recreate the first moments of the Big Bang, and how astronomers chart the vast depths of space to glimpse how the most distant galaxies formed. He describes the search for dark matter and the dark energy that will determine the ultimate fate of the Universe. This highly readable account will appeal to all those with an interest in the story of the Universe.

Contents

Prologue; 1. Building blocks of the cosmos; 2. The expansion of the universe; 3. Cosmic microwave background; 4. The first 10-43 seconds of the Universe; 5. Genesis of baryons and helium; 6. Testing the Big Bang; 7. Dark matter; 8. Baryonic dark matter; 9. Intergalactic matter; 10. Origin of structure; 11. Large-scale structure; 12. Galaxy formation; 13. What lies ahead.

Kenneth Stephenson

Introduction to Circle Packing
The Theory of Discrete Analytic Functions

400 pages 190 line diagrams 10 colour plates
Hardback | ISBN: 0-521-82356-0 | available from February 2005

The topic of ecircle packingf was born of the computer age but takes its inspiration and themes from core areas of classical mathematics. A circle packing is a configuration of circles having a specified pattern of tangencies, as introduced by William Thurston in 1985. This book lays out their study, from first definitions to latest theory, computations, and applications. The topic can be enjoyed for the visual appeal of the packing images - over 200 in the book - and the elegance of circle geometry, for the clean line of theory, for the deep connections to classical topics, or for the emerging applications. Circle packing has an experimental and visual character which is unique in pure mathematics, and the book exploits that to carry the reader from the very beginnings to links with complex analysis and Riemann surfaces. There are intriguing, often very accessible, open problems throughout the book and seven Appendices on subtopics of independent interest. This book lays the foundation for a topic with wide appeal and a bright future.

Contents

Part I. An Overview of Circle Packing: 1. A circle packing menagerie; 2. Circle packings in the wild; Part II. Rigidity: maximal Packings: 3. Preliminaries: topology, combinatorics, and geometry; 4. Statement of the fundamental result; 5. Bookkeeping and monodromy; 6. Proof for combinatorial closed discs; 7. Proof for combinatorial spheres; 8. Proof for combinatorial open discs; 9. Proof for combinatorial surfaces; Part III. Flexibility: Analytic Functions: 10. The intuitive landscape; 11. Discrete analytic functions; 12. Construction tools; 13. Discrete analytic functions on the disc; 14. Discrete entire functions; 15. Discrete rational functions; 16. Discrete analytic functions on Riemann surfaces; 17. Discrete conformal structure; 18. Random walks on circle packings; Part IV: 19. Thurstonfs Conjecture; 20. Extending the Rodin/Sullivan theorem; 21. Approximation of analytic functions; 22. Approximation of conformal structures; 23. Applications; Appendix A. Primer on classical complex analysis; Appendix B. The ring lemma; Appendix C. Doyle spirals; Appendix D. The brooks parameter; Appendix E. Schwarz and buckyballs; Appendix F. Inversive distance packings; Appendix G. Graph embedding; Appendix H. Square grid packings; Appendix I. Experimenting with circle packings.

Edited by Helmut Luetkepohl, Markus Kraetzig

Applied Time Series Econometrics

352 pages 69 line diagrams 38 tables
Paperback | ISBN: 0-521-54787-3 | available from October 2004
Hardback | ISBN: 0-521-83919-X | available from October 2004

Time series econometrics is a rapidly evolving field. Particularly, the cointegration revolution has had a substantial impact on applied analysis. Hence, no textbook has managed to cover the full range of methods in current use and explain how to proceed in applied domains. This gap in the literature motivates the present volume. The methods are sketched out, reminding the reader of the ideas underlying them and giving sufficient background for empirical work. The treatment can also be used as a textbook for a course on applied time series econometrics. Topics include: unit root and cointegration analysis, structural vector autoregressions, conditional heteroskedasticity and nonlinear and nonparametric time series models. Crucial to empirical work is the software that is available for analysis. New methodology is typically only gradually incorporated into existing software packages. Therefore a flexible Java interface has been created, allowing readers to replicate the applications and conduct their own analyses.

Contents

1. Initial tasks and overview: 1.1 Introduction; 1.2 Setting up an econometric project; 1.3 Getting data; 1.4 Data handling; 1.5 Outline of chapters; 2. Univariate time series analysis: 2.1 Characteristics of time series; 2.2 Stationary and integrated stochastic processes; 2.3 Some popular time series models; 2.4 Parameter estimation; 2.5 Model specification; 2.6 Model checking; 2.7 Unit root tests; 2.8 Forecasting univariate time series; 2.9 Examples; 2.10 Where to go from here?; 3. Vector autoregressive and vector error correction models: 3.1 Introduction; 3.2 VARs and VECMs; 3.3 Estimation; 3.4 Model specification; 3.5 Model checking; 3.6 Forecasting VAR processes and VECMs; 3.7 Granger-causality analysis; 3.8 An example; 3.9 Extensions; 4. Structural vector autoregressive modelling and impulse responses: 4.1 Introduction; 4.2 The models; 4.3 Impulse response analysis; 4.4 Estimation of structural parameters; 4.5 Statistical inference for impulse responses; 4.6 Forecast error variance decomposition; 4.7 Examples; 4.8 Conclusions; 5. Conditional heteroskedasticity: 5.1 Stylized facts of empirical price processes; 5.2 Univariate GARCH models; 5.3 Multivariate GARCH models; 6. Smooth transition regression modelling: 6.1 Introduction; 6.2 The model; 6.3 The modelling cycle; 6.4 Two empirical examples; 6.5 Final remarks; 7. Nonparametric time series modelling: 7.1 Introduction; 7.2 Local linear estimation; 7.3 Bandwidth and lag selection; 7.4 Diagnostics; 7.5 Modelling the conditional volatility; 7.6 Local linear seasonal modelling; 7.7 Example I: average weekly working hours in the U.S.; 7.8 Example II: XETRA dax index; 8. The software JMulTi: 8.1 Introduction to JMulTi 8.2 Numbers, dates and variables in JMulTi 8.3 Handling datasets; 8.4 Selecting, transforming and creating time series; 8.5 Managing variables in JMulTi; 8.6 Notes for econometric software developers; 8.7 Conclusion.

Ole Barndorff-Nielsen, Neil Shephard

Continuous Time Approach to Financial Volatility

450 pages
Hardback | ISBN: 0-521-83440-6 | - available from March 2005


The idea of this book is to explain how Levy processes can be used to study some problems in finance. The necessary technology is motivated and justified in an opening chapter, and is then followed by chapters explaining the mathematics and computational aspects of the subject. The heart of the book describes applications, with further mathematical ideas introduced as and when needed. The authors cover new ideas not presented in book form before, blending theory and practice, and this account will be of value to all those working in mathematical finance, financial econometrics, probability and statistics.

Herman J. Bierens

Introduction to the Mathematical and Statistical Foundations of Econometrics

344 pages 19 line diagrams 12 tables
Hardback | ISBN: 0-521-83431-7 | available from November 2004
Paperback | ISBN: 0-521-54224-3 | available from November 2004

This book is intended for use in a rigorous introductory PhD level course in econometrics, or in a field course in econometric theory. It covers the measure-theoretical foundation of probability theory, the multivariate normal distribution with its application to classical linear regression analysis, various laws of large numbers, central limit theorems and related results for independent random variables as well as for stationary time series, with applications to asymptotic inference of M-estimators, and maximum likelihood theory. Some chapters have their own appendices containing the more advanced topics and/or difficult proofs. Moreover, there are three appendices with material that is supposed to be known. Appendix I contains a comprehensive review of linear algebra, including all the proofs. Appendix II reviews a variety of mathematical topics and concepts that are used throughout the main text, and Appendix III reviews complex analysis. Therefore, this book is uniquely self-contained.

Contents

1. Probability and measure: 1.1 The Texas lotto; 1.2 Quality control; 1.3 Why do we need sigma-algebras of events?; 1.4 Properties of algebras and sigma-algebras; 1.5 Properties of probability measures; 1.6 The uniform probability measures; 1.7 Lebesque measure and Lebesque integral; 1.8 Random variables and their distributions; 1.9 Density functions; 1.10 Conditional probability, Bayesfs rule, and independence; 1.11 Exercises; 1.A Common structure of the proofs of Theorems 6 and 10; 1.B Extension of an outer measure to a probability measure; 2. Borel measurability, integration, and mathematical expectations: 2.1 Introduction; 2.2 Borel measurability; 2.3 Integral of Borel measurable functions with respect to a probability measure; 2.4 General measurability and integrals of random variables with respect to probability measures; 2.5 Mathematical expectation; 2.6 Some useful inequalities involving mathematical expectations; 2.7 Expectations of products of independent random variables; 2.8 Moment generating functions and characteristic functions; 2.9 Exercises; 2.A Uniqueness of characteristic functions; 3. Conditional expectations: 3.1 Introduction; 3.2 Properties of conditional expectations; 3.3 Conditional probability measures and conditional independence; 3.4 Conditioning on increasing sigma-algebras; 3.5 Conditional expectations as the best forecast schemes; 3.6 Exercises; 3.A Proof of theorem 3.12; 4. Distributions and transformations: 4.1 Discrete distributions; 4.2 Transformations of discrete random vectors; 4.3 Transformations of absolutely continuous random variables; 4.4 Transformations of absolutely continuous random vectors; 4.5 The normal distribution; 4.6 Distributions related to the normal distribution; 4.7 The uniform distribution and its relation to the standard normal distribution; 4.8 The gamma distribution; 4.9 Exercises; 4.A Tedious derivations; 4.B Proof of theorem 4.4; 5. The multivariate normal distribution and its application to statistical inference; 5.1 Expectation and variance of random vectors; 5.2 The multivariate normal distribution; 5.3 Conditional distributions of multivariate normal random variables; 5.4 Independence of linear and quadratic transformations of multivariate normal random variables; 5.5 Distribution of quadratic forms of multivariate normal random variables; 5.6 Applications to statistical inference under normality; 5.7 Applications to regression analysis; 5.8 Exercises; 5.A Proof of theorem 5.8; 6. Modes of convergence: 6.1 Introduction; 6.2 Convergence in probability and the weak law of large numbers; 6.3 Almost sure convergence, and the strong law of large numbers; 6.4 The uniform law of large numbers and its applications; 6.5 Convergence in distribution; 6.6 Convergence of characteristic functions; 6.7 The central limit theorem; 6.8 Stochastic boundedness, tightness, and the Op and op-notations; 6.9 Asymptotic normality of M-estimators; 6.10 Hypotheses testing; 6.11 Exercises; 6.A Proof of the uniform weak law of large numbers; 6.B Almost sure convergence and strong laws of large numbers; 6.C Convergence of characteristic functions and distributions; 7. Dependent laws of large numbers and central limit theorems: 7.1 Stationary and the world decomposition; 7.2 Weak laws of large numbers for stationary processes; 7.3 Mixing conditions; 7.4 Uniform weak laws of large numbers; 7.5 Dependent central limit theorems; 7.6 Exercises; 7.A Hilbert spaces; 8. Maximum likelihood theory; 8.1 Introduction; 8.2 Likelihood functions; 8.3 Examples; 8.4 Asymptotic properties if ML estimators; 8.5 Testing parameter restrictions; 8.6 Exercises.