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Now showing items 1-4 of 4

  • Influence of noise on scalings for in-out intermittency 

    Ashwin, Peter; Covas, Eurico; Tavakol, Reza (American Physical Society, 2001)
    We study the effects of noise on a recently discovered form of intermittency, referred to as in-out intermittency. This type of intermittency, which reduces to on-off in systems with a skew product structure, has been found ...
  • In–out intermittency in partial differential equation and ordinary differential equation models 

    Covas, Eurico; Tavakol, Reza; Ashwin, Peter; Tworkowski, Andrew; Brooke, John M. (American Institute of Physics, 2001)
    We find concrete evidence for a recently discovered form of intermittency, referred to as in–out intermittency, in both partial differential equation (PDE) and ordinary differential equation (ODE) models of mean field ...
  • Non-normal parameter blowout bifurcation: an example in a truncated mean field dynamo model 

    Covas, Eurico; Ashwin, Peter; Tavakol, Reza (American Physical Society, 1997)
    We examine global dynamics and bifurcations occurring in a truncated model of a stellar mean field dynamo. This model has symmetry-forced invariant subspaces for the dynamics and we find examples of transient type I ...
  • Transverse instability for non-normal parameters 

    Ashwin, Peter; Covas, Eurico; Tavakol, Reza (Institute of Physics, 1999)
    We consider the behaviour of attractors near invariant subspaces on varying a parameter that does not preserve the dynamics in the invariant subspace but is otherwise generic, in a smooth dynamical system. We refer to such ...