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AuthorPollard, David. author
TitleConvergence of Stochastic Processes [electronic resource] / by David Pollard
ImprintNew York, NY : Springer New York, 1984
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Descript 215 p. online resource


A more accurate title for this book might be: An Exposition of Selected Parts of Empirical Process Theory, With Related Interesting Facts About Weak Convergence, and Applications to Mathematical Statistics. The high points are Chapters II and VII, which describe some of the developments inspired by Richard Dudley's 1978 paper. There I explain the combinatorial ideas and approximation methods that are needed to prove maximal inequalities for empirical processes indexed by classes of sets or classes of functions. The material is somewhat arbitrarily divided into results used to prove consistency theorems and results used to prove central limit theorems. This has allowed me to put the easier material in Chapter II, with the hope of enticing the casual reader to delve deeper. Chapters III through VI deal with more classical material, as seen from a different perspective. The novelties are: convergence for measures that don't live on borel a-fields; the joys of working with the uniform metric on D[O, IJ; and finite-dimensional approximation as the unifying idea behind weak convergence. Uniform tightness reappears in disguise as a condition that justifies the finite-dimensional approximation. Only later is it exploited as a method for proving the existence of limit distributions. The last chapter has a heuristic flavor. I didn't want to confuse the martingale issues with the martingale facts


I Functional on Stochastic Processes -- 1. Stochastic Processes as Random Functions -- II Uniform Convergence of Empirical Measures -- 1. Uniformity and Consistency -- 2. Direct Approximation -- 3. The Combinatorial Method -- 4. Classes of Sets with Polynomial Discrimination -- 5. Classes of Functions -- 6. Rates of Convergence -- III Convergence in Distribution in Euclidean Spaces -- 1. The Definition -- 2. The Continuous Mapping Theorem -- 3. Expectations of Smooth Functions -- 4. The Central Limit Theorem -- 5. Characteristic Functions -- 6. Quantile Transformations and Almost Sure Representations -- IV Convergence in Distribution in Metric Spaces -- 1. Measurability -- 2. The Continuous Mapping Theorem -- 3. Representation by Almost Surely Convergent Sequences -- 4. Coupling -- 5. Weakly Convergent Subsequences -- V The Uniform Metric on Spaces of Cadlag Functions -- 1. Approximation of Stochastic Processes -- 2. Empirical Processes -- 3. Existence of Brownian Bridge and Brownian Motion -- 4. Processes with Independent Increments -- 5. Infinite Time Scales -- 6. Functional of Brownian Motion and Brownian Bridge -- VI The Skorohod Metric on D(0, ?) -- 1. Properties of the Metric -- 2. Convergence in Distribution -- VII Central Limit Theorems -- 1. Stochastic Equicontinuity -- 2. Chaining -- 3. Gaussian Processes -- 4. Random Covering Numbers -- 5. Empirical Central Limit Theorems -- 6. Restricted Chaining -- VIII Martingales -- 1. A Central Limit Theorem for Martingale-Difference Arrays -- 2. Continuous Time Martingales -- 3. Estimation from Censored Data -- Appendix A Stochastic-Order Symbols -- Appendix B Exponential Inequalities -- Notes -- Problems -- Appendix C Measurability -- Notes -- Problems -- References -- Author Index

Mathematics Probabilities Statistics Mathematics Probability Theory and Stochastic Processes Statistical Theory and Methods


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