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Rotating Wave Solutions to Lattice Dynamical Systems II: Persistence Results

  • Jason J. Bramburger
Article

Abstract

This work comes as the second part in a series of investigations into the dynamics of rotating waves as solutions to lattice dynamical systems. Such nonlinear waves as solutions to mathematical equations are of great interest throughout the physical sciences due to their association with many electrophysiological pathologies and this investigation aims to further the understanding of rotating waves from a mathematical perspective. Here we focus on so-called Lambda–Omega differential equations, a well-studied generalization of the celebrated Ginzburg–Landau equation, to show that there exists an interval of sufficiently small coupling values for which a rotating wave solution persists. This result is achieved using a wide range of functional analytic tools, primarily in an effort to apply a non-standard implicit function theorem. This work initiates subsequent studies into the dynamics and bifurcations of rotating waves away from the reaction–diffusion equation setting to differential equations for which traditional symmetry based centre manifold reductions cannot be applied.

Keywords

Rotating waves Lattice dynamical systems Alternative implicit function theorem 

Notes

Acknowledgements

This work was supported by an Ontario Graduate Scholarship while at the University of Ottawa. The author is very thankful to his supervisors Benoit Dionne and Victor LeBlanc for their guidance on all matters related to the work.

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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Division of Applied MathematicsBrown UniversityProvidenceUSA

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