no. 23-24
Partial differential equations
Local well-posedness of a nonlinear KdV-type equation
[Existence locale pour une équation non linéaire de type KdV]

Présenté par : the Editorial Board

Israwi, Samer1, 2 ; Talhouk, Raafat2
1 Center for Research in Applied Mathematics and Statistics, Arts Sciences and Technology University in Lebanon (AUL), 113-7504 Beirut, Lebanon
2 Department and Laboratory of Mathematics, Faculty of Sciences 1, Doctoral School of Sciences and Technology, Lebanese University, Hadath, Lebanon
Comptes Rendus. Mathématique, Tome 351 (2013) no. 23-24, pp. 895-899.

Dans cette note, on considère une équation de KdV généralisée avec coefficients variables en temps et en espace. On montre que les termes de « diffusion » et de dispersion peuvent être contrôlés en utilisant une fonction poids, déterminée en fonction des coefficients de « diffusion » et de dispersion, appropriée pour définir lʼénergie ; puis, en utilisant la propriété de dispersion de lʼéquation, on montre un résultat dʼexistence et dʼunicité des solutions.

In this paper, a generalized nonlinear KdV equation with time- and space-dependent coefficients is considered. We show that the control of the dispersive and “diffusion” terms is possible if we use an adequate weight function determined with respect to the dispersive and “diffusion” coefficients to define the energy. We use the dispersive properties of the equation to prove the existence and uniqueness of solutions.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2013.10.032
Israwi, Samer 1, 2 ; Talhouk, Raafat 2

1 Center for Research in Applied Mathematics and Statistics, Arts Sciences and Technology University in Lebanon (AUL), 113-7504 Beirut, Lebanon
2 Department and Laboratory of Mathematics, Faculty of Sciences 1, Doctoral School of Sciences and Technology, Lebanese University, Hadath, Lebanon 
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Israwi, Samer; Talhouk, Raafat. Local well-posedness of a nonlinear KdV-type equation. Comptes Rendus. Mathématique, Tome 351 (2013) no. 23-24, pp. 895-899. doi : 10.1016/j.crma.2013.10.032. http://archive.numdam.org/articles/10.1016/j.crma.2013.10.032/

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[2] T. Akhunov, A sharp condition for the well-posedness of the linear KdV-type equation, submitted for publication, , 11 Jan. 2013. | arXiv

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