The strange eigenmode in Lagrangian coordinates.

نویسنده

  • Jean-Luc Thiffeault
چکیده

For a distribution advected by a simple chaotic map with diffusion, the "strange eigenmode" is investigated from the Lagrangian (material) viewpoint and compared to its Eulerian (spatial) counterpart. The eigenmode embodies the balance between diffusion and exponential stretching by a chaotic flow. It is not strictly an eigenmode in Lagrangian coordinates, because its spectrum is rescaled exponentially rapidly.

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عنوان ژورنال:
  • Chaos

دوره 14 3  شماره 

صفحات  -

تاریخ انتشار 2004