Abstract
We study the Cauchy problem for a one-dimensional dispersive system of Boussinesq type which models weakly nonlinear long wave surface waves. We prove that such a system is ill-posed in H s(ℝ) for s < 0 in the sense that the solution does not depend continuously on the initial data. We also provide criteria for the formation of singularities.
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The work of R. M. Chen was partially supported by the NSF grant DMS-0908663.
The work of Y. Liu was partially supported by the NSF grant DMS-0906099 and the NHARP grant 003599-0001-2009.
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Chen, R.M., Liu, Y. On the ill-posedness of a weakly dispersive one-dimensional Boussinesq system. JAMA 121, 299–316 (2013). https://doi.org/10.1007/s11854-013-0037-7
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DOI: https://doi.org/10.1007/s11854-013-0037-7