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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Diffusive stability of oscillations in reaction-diffusion systems
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by Thierry Gallay and Arnd Scheel PDF
Trans. Amer. Math. Soc. 363 (2011), 2571-2598 Request permission

Abstract:

We study nonlinear stability of spatially homogeneous oscillations in reaction-diffusion systems. Assuming absence of unstable linear modes and linear diffusive behavior for the neutral phase, we prove that spatially localized perturbations decay algebraically with the diffusive rate $t^{-n/2}$ in space dimension $n$. We also compute the leading order term in the asymptotic expansion of the solution and show that it corresponds to a spatially localized modulation of the phase. Our approach is based on a normal form transformation in the kinetics ODE which partially decouples the phase equation at the expense of making the whole system quasilinear. Stability is then obtained by a global fixed point argument in temporally weighted Sobolev spaces.
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Additional Information
  • Thierry Gallay
  • Affiliation: Institut Fourier, UMR CNRS 5582, BP 74, Université de Grenoble I, 38402 Saint-Martin-d’Hères, France
  • Email: Thierry.Gallay@ujf-grenoble.fr
  • Arnd Scheel
  • Affiliation: School of Mathematics, University of Minnesota, 206 Church Street S.E., Minneapolis, Minnesota 55455
  • MR Author ID: 319772
  • ORCID: 0000-0001-6667-3003
  • Email: scheel@umn.edu
  • Received by editor(s): June 24, 2008
  • Received by editor(s) in revised form: June 26, 2009
  • Published electronically: December 20, 2010
  • © Copyright 2010 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Trans. Amer. Math. Soc. 363 (2011), 2571-2598
  • MSC (2010): Primary 35B35, 35B40, 35B10, 35K57
  • DOI: https://doi.org/10.1090/S0002-9947-2010-05148-7
  • MathSciNet review: 2763727