Visualizing Invariant Manifolds in Area-Preserving Maps

  • Xavier Tricoche
  • Christoph Garth
  • Allen Sanderson
  • Ken Joy
Chapter
Part of the Mathematics and Visualization book series (MATHVISUAL)

Abstract

Area-preserving maps arise in the study of conservative dynamical systems describing a wide variety of physical phenomena, from the rotation of planets to the dynamics of a fluid. The visual inspection of these maps reveals a remarkable topological picture in which invariant manifolds form the fractal geometric scaffold of both quasi-periodic and chaotic regions. We discuss in this paper the visualization of such maps built upon these invariant manifolds. This approach is in stark contrast with the discrete Poincare plots that are typically used for the visual inspection of maps. We propose to that end several modified definitions of the finite-time Lyapunov exponents that we apply to reveal the underlying structure of the dynamics. We examine the impact of various parameters and the numerical aspects that pertain to the implementation of this method. We apply our technique to a standard analytical example and to a numerical simulation of magnetic confinement in a fusion reactor. In both cases our simple method is able to reveal salient structures across spatial scales and to yield expressive images across application domains.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Xavier Tricoche
    • 1
  • Christoph Garth
    • 2
  • Allen Sanderson
    • 3
  • Ken Joy
    • 2
  1. 1.Purdue UniversityWest LafayetteUSA
  2. 2.University of California DavisDavisUSA
  3. 3.University of UtahSalt Lake CityUSA

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