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Boundary behavior of the solution to the linear Korteweg-De Vries equation on the half line
Authors:Andreas Chatziafratis  Spyridon Kamvissis  Ioannis G Stratis
Institution:1. Department of Mathematics, National and Kapodistrian University of Athens, Panepistimioupolis, Athens, Greece;2. Institute of Applied and Computational Mathematics, FORTH, Crete, Greece
Abstract:In this paper, we consider the solution to the linear Korteweg-De Vries (KdV) equation, both homogeneous and forced, on the quadrant { x R + , t R + } $\lbrace x\in \mathbb {R}^+,t\in \mathbb {R}^+\rbrace$ via the unified transform method of Fokas and we provide a complete rigorous study of the integrals of the formula provided by the method, especially focusing on the explicit verification of the considered initial-boundary-value problems (IBVPs), with generic data, as well as on the uniform convergence of all its derivatives, as ( x , t ) $(x,t)$ approaches the boundary of the quadrant, and their rapid decay as x $x\rightarrow \infty$ .
Keywords:classical solution  Ehrenpreis–Palamodov representation  Fokas formula  forced linearized KdV equation   on the half-line  long-space estimates  mixed initial-boundary value problems  smoothness up to the boundary  unified transform method
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