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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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A center manifold for second order semilinear differential equations on the real line and applications to the existence of wave trains for the Gurtin–McCamy equation
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by Arnaud Ducrot and Pierre Magal PDF
Trans. Amer. Math. Soc. 372 (2019), 3487-3537 Request permission

Abstract:

This work is mainly motivated by the study of periodic wave train solutions for the so-called Gurtin–McCamy equation. To that aim we construct a smooth center manifold for a rather general class of abstract second order semilinear differential equations involving nondensely defined operators. We revisit results on commutative sums of linear operators using the integrated semigroup theory. These results are used to reformulate the notion of the weak solutions of the problem. We also derive a suitable fixed point formulation for the graph of the local center manifold that allows us to conclude the existence and smoothness of such a local invariant manifold. Then we derive a Hopf bifurcation theorem for second order semilinear equations. This result is applied to studying the existence of periodic wave trains for the Gurtin–McCamy problem, that is, for a class of nonlocal age-structured equations with diffusion.
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Additional Information
  • Arnaud Ducrot
  • Affiliation: Normandie Université, UNIHAVRE, LMAH, FR-CNRS-3335, ISCN, 76600 Le Havre, France
  • MR Author ID: 724386
  • Email: arnaud.ducrot@univ-lehavre.fr
  • Pierre Magal
  • Affiliation: Université de Bordeaux, IMB, UMR 5251, F-33076 Bordeaux, France; and CNRS, IMB, UMR 5251, F-33400 Talence, France
  • MR Author ID: 618325
  • ORCID: 0000-0002-4776-0061
  • Email: pierre.magal@u-bordeaux.fr
  • Received by editor(s): December 20, 2017
  • Received by editor(s) in revised form: December 4, 2018
  • Published electronically: April 4, 2019
  • © Copyright 2019 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 372 (2019), 3487-3537
  • MSC (2010): Primary 37L10, 35J61, 35C07, 34C23, 47D62
  • DOI: https://doi.org/10.1090/tran/7780
  • MathSciNet review: 3988617