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Rigorous numerics for ill-posed PDEs: periodic orbits in the Boussinesq equation | | R. Castelli
; M. Gameiro
; J.-P. Lessard
; | | Date: |
29 Sep 2015 | | Abstract: | In this paper, we develop computer-assisted techniques for the analysis of
periodic orbits of ill-posed partial differential equations. As a case study,
our proposed method is applied to the Boussinesq equation, which has been
investigated extensively because of its role in the theory of shallow water
waves. The idea is to use the symmetry of the solutions and a
Newton-Kantorovich type argument (the radii polynomial approach), to obtain
rigorous proofs of existence of the periodic orbits in a weighted $ell^1$
Banach space of space-time Fourier coefficients with geometric decay. We
present several computer-assisted proofs of existence of periodic orbits at
different parameter values. | | Source: | arXiv, 1509.8648 | | Services: | Forum | Review | PDF | Favorites | |
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