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Dynamics of Topologically Generic Homeomorphisms
 
Ethan Akin City College of New York (CUNY), New York, NY
Mike Hurley Case Western Reserve University, Cleveland, OH
Judy A. Kennedy University of Delaware, Newark, DE
Dynamics of Topologically Generic Homeomorphisms
eBook ISBN:  978-1-4704-0381-2
Product Code:  MEMO/164/783.E
List Price: $62.00
MAA Member Price: $55.80
AMS Member Price: $37.20
Dynamics of Topologically Generic Homeomorphisms
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Dynamics of Topologically Generic Homeomorphisms
Ethan Akin City College of New York (CUNY), New York, NY
Mike Hurley Case Western Reserve University, Cleveland, OH
Judy A. Kennedy University of Delaware, Newark, DE
eBook ISBN:  978-1-4704-0381-2
Product Code:  MEMO/164/783.E
List Price: $62.00
MAA Member Price: $55.80
AMS Member Price: $37.20
  • Book Details
     
     
    Memoirs of the American Mathematical Society
    Volume: 1642003; 130 pp
    MSC: Primary 37

    The goal of this work is to describe the dynamics of generic homeomorphisms of certain compact metric spaces \(X\). Here “generic” is used in the topological sense — a property of homeomorphisms on \(X\) is generic if the set of homeomorphisms with the property contains a residual subset (in the sense of Baire category) of the space of all homeomorphisms on \(X\). The spaces \(X\) we consider are those with enough local homogeneity to allow certain localized perturbations of homeomorphisms; for example, any compact manifold is such a space. We show that the dynamics of a generic homeomorphism is quite complicated, with a number of distinct dynamical behaviors coexisting (some resemble subshifts of finite type, others, which we call ‘generalized adding machines’, appear strictly periodic when viewed to any finite precision, but are not actually periodic). Such a homeomorphism has infinitely many, intricately nested attractors and repellors, and uncountably many distinct dynamically-connected components of the chain recurrent set. We single out several types of these “chain components”, and show that each type occurs densely (in an appropriate sense) in the chain recurrent set. We also identify one type that occurs generically in the chain recurrent set. We also show that, at least for \(X\) a manifold, the chain recurrent set of a generic homeomorphism is a Cantor set, so its complement is open and dense. Somewhat surprisingly, there is a residual subset of \(X\) consisting of points whose limit sets are chain components of a type other than the type of chain components that are residual in the space of all chain components. In fact, for each generic homeomorphism on \(X\) there is a residual subset of points of \(X\) satisfying a stability condition stronger than Lyapunov stability.

    Readership

    Graduate students and research mathematicians interested in dynamical systems and ergodic theory.

  • Table of Contents
     
     
    • Chapters
    • Introduction
    • 1. Attractors and chain recurrence
    • 2. Periodic decompositions and adding machines
    • 3. Semicontinuity and homogeneity
    • 4. Crushing arguments
    • 5. Topological horseshoes
    • 6. Generic homeomorphisms
    • 7. Almost equicontinuity
    • 8. Cantor sets
    • 9. The circle
    • 10. Crushing the chain recurrent set
    • 11. Generic homeomorphisms on manifolds
    • 12. Generic mappings on manifolds
  • Requests
     
     
    Review Copy – for publishers of book reviews
    Permission – for use of book, eBook, or Journal content
    Accessibility – to request an alternate format of an AMS title
Volume: 1642003; 130 pp
MSC: Primary 37

The goal of this work is to describe the dynamics of generic homeomorphisms of certain compact metric spaces \(X\). Here “generic” is used in the topological sense — a property of homeomorphisms on \(X\) is generic if the set of homeomorphisms with the property contains a residual subset (in the sense of Baire category) of the space of all homeomorphisms on \(X\). The spaces \(X\) we consider are those with enough local homogeneity to allow certain localized perturbations of homeomorphisms; for example, any compact manifold is such a space. We show that the dynamics of a generic homeomorphism is quite complicated, with a number of distinct dynamical behaviors coexisting (some resemble subshifts of finite type, others, which we call ‘generalized adding machines’, appear strictly periodic when viewed to any finite precision, but are not actually periodic). Such a homeomorphism has infinitely many, intricately nested attractors and repellors, and uncountably many distinct dynamically-connected components of the chain recurrent set. We single out several types of these “chain components”, and show that each type occurs densely (in an appropriate sense) in the chain recurrent set. We also identify one type that occurs generically in the chain recurrent set. We also show that, at least for \(X\) a manifold, the chain recurrent set of a generic homeomorphism is a Cantor set, so its complement is open and dense. Somewhat surprisingly, there is a residual subset of \(X\) consisting of points whose limit sets are chain components of a type other than the type of chain components that are residual in the space of all chain components. In fact, for each generic homeomorphism on \(X\) there is a residual subset of points of \(X\) satisfying a stability condition stronger than Lyapunov stability.

Readership

Graduate students and research mathematicians interested in dynamical systems and ergodic theory.

  • Chapters
  • Introduction
  • 1. Attractors and chain recurrence
  • 2. Periodic decompositions and adding machines
  • 3. Semicontinuity and homogeneity
  • 4. Crushing arguments
  • 5. Topological horseshoes
  • 6. Generic homeomorphisms
  • 7. Almost equicontinuity
  • 8. Cantor sets
  • 9. The circle
  • 10. Crushing the chain recurrent set
  • 11. Generic homeomorphisms on manifolds
  • 12. Generic mappings on manifolds
Review Copy – for publishers of book reviews
Permission – for use of book, eBook, or Journal content
Accessibility – to request an alternate format of an AMS title
Please select which format for which you are requesting permissions.