Asymptotic stability of solitary waves in generalized Gross–Neveu model

Comech, Andrew; Phan, Tuoc Van; Stefanov, Atanas

doi:10.1016/j.anihpc.2015.11.001

Comech, Andrew ; Phan, Tuoc Van ; Stefanov, Atanas

Annales de l'I.H.P. Analyse non linéaire, Tome 34 (2017) no. 1, pp. 157-196.

Résumé

For the nonlinear Dirac equation in $(1 + 1) D$ with scalar self-interaction (Gross–Neveu model), with quintic and higher order nonlinearities (and within certain range of the parameters), we prove that solitary wave solutions are asymptotically stable in the “even” subspace of perturbations (to ignore translations and eigenvalues $\pm 2 ω i$ ). The asymptotic stability is proved for initial data in $H^{1}$ . The approach is based on the spectral information about the linearization at solitary waves which we justify by numerical simulations. For the proof, we develop the spectral theory for the linearized operators and obtain appropriate estimates in mixed Lebesgue spaces, with and without weights.

MR Zbl

DOI : 10.1016/j.anihpc.2015.11.001

Mots clés : Gross–Neveu model, Nonlinear Dirac equation, Solitary waves, Asymptotic stability, Weighted spaces

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     title = {Asymptotic stability of solitary waves in generalized {Gross{\textendash}Neveu} model},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {157--196},
     publisher = {Elsevier},
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Comech, Andrew; Phan, Tuoc Van; Stefanov, Atanas. Asymptotic stability of solitary waves in generalized Gross–Neveu model. Annales de l'I.H.P. Analyse non linéaire, Tome 34 (2017) no. 1, pp. 157-196. doi : 10.1016/j.anihpc.2015.11.001. http://www.numdam.org/articles/10.1016/j.anihpc.2015.11.001/

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