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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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Blow-up profile for the complex-valued semilinear wave equation
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by Asma Azaiez PDF
Trans. Amer. Math. Soc. 367 (2015), 5891-5933 Request permission

Abstract:

In this paper, we consider a blow-up solution for the complex-valued semilinear wave equation with power non-linearity in one space dimension. We first characterize all the solutions of the associated stationary problem as a two-parameter family. Then, we use a dynamical system formulation to show that the solution in self-similar variables approaches some particular stationary one in the energy norm, in the non-characteristic case. This gives the blow-up profile for the original equation in the non-characteristic case. Our analysis is not just a simple adaptation of the already handled real case. In particular, there is one more neutral-direction in our problem, which we control thanks to a modulation technique.
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Additional Information
  • Asma Azaiez
  • Affiliation: Institut Galilée, Laboratoire Analyse Géometrie et Applications, CNRS-UMR 7539, Université Paris 13, 99 avenue J.B. Clément 93430, Villetaneuse, France
  • Email: azaiez@math.univ-paris13.fr
  • Received by editor(s): June 19, 2013
  • Received by editor(s) in revised form: October 25, 2013, and November 30, 2013
  • Published electronically: August 12, 2014
  • © Copyright 2014 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 367 (2015), 5891-5933
  • MSC (2010): Primary 35L05, 35L81, 35B44, 39B32, 35B40, 34K21, 35B35
  • DOI: https://doi.org/10.1090/S0002-9947-2014-06370-8
  • MathSciNet review: 3347192