Diffusions, Markov Processes, and Martingales: Volume 1, Foundations ( Cambridge Mathematical Library )

Publication series :Cambridge Mathematical Library

Author: L. C. G. Rogers; David Williams  

Publisher: Cambridge University Press‎

Publication year: 2000

E-ISBN: 9781107710702

P-ISBN(Paperback): 9780521775946

Subject: O211.62 Markov process

Keyword: 数论

Language: ENG

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Diffusions, Markov Processes, and Martingales: Volume 1, Foundations

Description

Now available in paperback, this celebrated book has been prepared with readers' needs in mind, remaining a systematic guide to a large part of the modern theory of Probability, whilst retaining its vitality. The authors' aim is to present the subject of Brownian motion not as a dry part of mathematical analysis, but to convey its real meaning and fascination. The opening, heuristic chapter does just this, and it is followed by a comprehensive and self-contained account of the foundations of theory of stochastic processes. Chapter 3 is a lively and readable account of the theory of Markov processes. Together with its companion volume, this book helps equip graduate students for research into a subject of great intrinsic interest and wide application in physics, biology, engineering, finance and computer science.

Chapter

11. Quadratic variation

12. The strong Markov property

13. Reflection

14. Reflecting Brownian motion and local time

15. Kolmogorov's test

16. Brownian exponential martingales and the Law of the Iterated Logarithm

3. Brownian Motion in Higher Dimensions

17. Some martingales for Brownian motion

18. Recurrence and transience in higher dimensions

19. Some applications of Brownian motion to complex analysis

20. Windings of planar Brownian motion

21. Multiple points, cone points, cut points

22. Potential theory of Brownian motion in R[sup(d)] (d ≥ 3)

23. Brownian motion and physical diffusion

4. Gaussian Processes and Lévy Processes

Gaussian processes

24. Existence results for Gaussian processes

25. Continuity results

26. Isotropic random flows

27. Dynkin's Isomorphism Theorem

Lévy processes

28. Lévy processes

29. Fluctuation theory and Wiener-Hopf factorisation

30. Local time of Lévy processes

Chapter II. Some Classical Theory

1. Basic Measure Theory

Measurability and measure

1. Measurable spaces; σ-algebras; π-systems; d-systems

2. Measurable functions

3. Monotone-Class Theorems

4. Measures; the uniqueness lemma; almost everywhere; a.e.(μ, ∑)

5. Carathéodory's Extension Theorem

6. Inner and outer μ-measures; completion

Integration

7. Definition of the integral ∫ f dμ

8. Convergence theorems

9. The Radon-Nikodým Theorem; absolute continuity; λ « μ notation; equivalent measures

10. Inequalities; ℒ[sup(P)] and L[sup(P)] spaces (p ≥ 1)

Product structures

11. Product σ-algebras

12. Product measure; Fubini's Theorem

13. Exercises

2. Basic Probability Theory

Probability and expectation

14. Probability triple; almost surely (a.s.); a.s.(P), a.s.(P,ℱ)

15. lim sup E[sub(n)]; First Borel–Cantelli Lemma

16. Law of random variable; distribution function; joint law

17. Expectation; E(X; F)

18. Inequalities: Markov, Jensen, Schwarz, Tchebychev

19. Modes of convergence of random variables

Uniform integrability and ℒ[sup(1)] convergence

20. Uniform integrability

21. ℒ[sup(1)] convergence

Independence

22. Independence of σ-algebras and of random variables

23. Existence of families of independent variables

24. Exercises

3. Stochastic Processes

The Daniell–Kolmogorov Theorem

25. (E[sup(T)], ℰ[sup(T)]); σ-algebras on function space; cylinders and σ-cylinders

26. Infinite products of probability triples

27. Stochastic process; sample function; law

28. Canonical process

29. Finite-dimensional distributions; sufficiency; compatibility

30. The Daniell–Kolmogorov (DK) Theorem: 'compact metrizable' case

31. The Daniell–Kolmogorov (DK) Theorem: general case

32. Gaussian processes; pre-Brownian motion

33. Pre-Poisson set functions

Beyond the DK Theorem

34. Limitations of the DK Theorem

35. The role of outer measures

36. Modifications; indistinguishability

37. Direct construction of Poisson measures and subordinators, and of local time from the zero set; Azéma's martingale

38. Exercises

4. Discrete-Parameter Martingale Theory

Conditional expectation

39. Fundamental theorem and definition

40. Notation; agreement with elementary usage

41. Properties of conditional expectation: a list

42. The role of versions; regular conditional probabilities and pdfs

43. A counterexample

44. A uniform-integrability property of conditional expectations

(Discrete-parameter) martingales and supermartingales

45. Filtration; filtered space; adapted process; natural filtration

46. Martingale; supermartingale; submartingale

47. Previsible process; gambling strategy; a fundamental principle

48. Doob's Upcrossing Lemma

49. Doob's Supermartingale-Convergence Theorem

50. ℒ[sup(1)] convergence and the UI property

51. The Lévy–Doob Downward Theorem

52. Doob's Submartingale and ℒ[sup(P)] Inequalities

53. Martingales in ℒ[sup(2)]; orthogonality of increments

54. Doob decomposition

55. The〈M〉and [M] processes

Stopping times, optional stopping and optional sampling

56. Stopping time

57. Optional-stopping theorems

58. The pre-T σ-algebra ℱ[sub(T)]

59. Optional sampling

60. Exercises

5. Continuous-Parameter Supermartingales

Regularisation: R-supermartingales

61. Orientation

62. Some real-variable results

63. Filtrations; supermartingales; R-processes, R-supermartingales

64. Some important examples

65. Doob's Regularity Theorem: Part 1

66. Partial augmentation

67. Usual conditions; R-filtered space; usual augmentation; R-regularisation

68. A necessary pause for thought

69. Convergence theorems for R-supermartingales

70. Inequalities and ℒ[sup(P)] convergence for R-submartingales

71. Martingale proof of Wiener's Theorem; canonical Brownian motion

72. Brownian motion relative to a filtered space

Stopping times

73. Stopping time T; pre-T σ-algebra G[sub(T)]; progressive process

74. First-entrance (début) times; hitting times; first-approach times: the easy cases

75. Why 'completion' in the usual conditions has to be introduced

76. Début and Section Theorems

77. Optional Sampling for R-supermartingales under the usual conditions

78. Two important results for Markov-process theory

79. Exercises

6. Probability Measures on Lusin Spaces

'Weak convergence'

80. C(J) and Pr(J) when J is compact Hausdorff

81. C(J) and Pr(J) when J is compact metrizable

82. Polish and Lusin spaces

83. The C[sub(b)](S) topology of Pr(S) when S is a Lusin space; Prohorov's Theorem

84. Some useful convergence results

85. Tightness in Pr(W) when W is the path-space W:= C([0, ∞);R)

86. The Skorokhod representation of C[sub(b)](S) convergence on Pr(S)

87. Weak convergence versus convergence of finite-dimensional distributions

Regular conditional probabilities

88. Some preliminaries

89. The main existence theorem

90. Canonical Brownian Motion CBM(R[sup(N)]); Markov property of P[sup(x)] laws

91. Exercises

Chapter III. Markov Processes

1. Transition Functions and Resolvents

1. What is a (continuous-time) Markov process?

2. The finite-state-space Markov chain

3. Transition functions and their resolvents

4. Contraction semigroups on Banach spaces

5. The Hille–Yosida Theorem

2. Feller–Dynkin Processes

6. Feller–Dynkin (FD) semigroups

7. The existence theorem: canonical FD processes

8. Strong Markov property: preliminary version

9. Strong Markov property: full version; Blumenthal's 0-1 Law

10. Some fundamental martingales; Dynkin's formula

11. Quasi-left-continuity

12. Characteristic operator

13. Feller–Dynkin diffusions

14. Characterisation of continuous real Lévy processes

15. Consolidation

3. Additive Functionals

16. PCHAFs; λ-excessive functions; Brownian local time

17. Proof of the Volkonskii–Šur–Meyer Theorem

18. Killing

19. The Feynmann–Kac formula

20. A Ciesielski–Taylor Theorem

21. Time-substitution

22. Reflecting Brownian motion

23. The Feller–McKean chain

24. Elastic Brownian motion; the arcsine law

4. Approach to Ray Processes: The Martin Boundary

25. Ray processes and Markov chains

26. Important example: birth process

27. Excessive functions, the Martin kernel and Choquet theory

28. The Martin compactification

29. The Martin representation; Doob–Hunt explanation

30. R. S. Martin's boundary

31. Doob–Hunt theory for Brownian motion

32. Ray processes and right processes

5. Ray Processes

33. Orientation

34. Ray resolvents

35. The Ray–Knight compactification

Ray's Theorem: analytical part

36. From semigroup to resolvent

37. Branch-points

38. Choquet representation of 1-excessive probability measures

Ray's Theorem: probabilistic part

39. The Ray process associated with a given entrance law

40. Strong Markov property of Ray processes

41. The role of branch-points

6. Applications

Martin boundary theory in retrospect

42. From discrete to continuous time

43. Proof of the Doob–Hunt Convergence Theorem

44. The Choquet representation of Π-excessive functions

45. Doob h-transforms

Time reversal and related topics

46. Nagasawa's formula for chains

47. Strong Markov property under time reversal

48. Equilibrium charge

49. BM(R) and BES(3): splitting times

A first look at Markov-chain theory

50. Chains as Ray processes

51. Significance of q[sub(i)]

52. Taboo probabilities; first-entrance decomposition

53. The Q-matrix; DK conditions

54. Local-character condition for Q

55. Totally instantaneous Q-matrices

56. Last exits

57. Excursions from b

58. Kingman's solution of the 'Markov characterization problem'

59. Symmetrisable chains

60. An open problem

References for Volumes 1 and 2

Index to Volumes 1 and 2

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