Abstract
We show for the Korteweg-de Vries equation an existence uniqueness theorem in Sobolev spaces of arbitrary fractional orders≧2, provided the initial data is given in the same space.
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Saut, J.C., Temam, R. Remarks on the Korteweg-de Vries equation. Israel J. Math. 24, 78–87 (1976). https://doi.org/10.1007/BF02761431
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DOI: https://doi.org/10.1007/BF02761431