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5 papers · 2 filters
Quantum waveguides with corners
Monique Dauge, Yvon Lafranche, Nicolas Raymond
The simplest modeling of planar quantum waveguides is the Dirichlet eigenproblem for the Laplace operator in unbounded open sets which are uniformly thin in one direction. Here we…
Weak backward error analysis for SDEs
Arnaud Debussche, Erwan Faou
We consider numerical approximations of stochastic differential equations by the Euler method. In the case where the SDE is elliptic or hypoelliptic, we show a weak backward error…
Shape derivatives of boundary integral operators in electromagnetic scattering. Part II : Application to scattering by a homogeneous dielectric obstacle
Martin Costabel, Frédérique Le Louër
We develop the shape derivative analysis of solutions to the problem of scattering of time-harmonic electromagnetic waves by a bounded penetrable obstacle. Since boundary integral…
Shape derivatives of boundary integral operators in electromagnetic scattering. Part I: Shape differentiability of pseudo-homogeneous boundary integral operators
Martin Costabel, Frédérique Le Louër
In this paper we study the shape differentiability properties of a class of boundary integral operators and of potentials with weakly singular pseudo-homogeneous kernels acting bet…
Non-coercive transmission problems in polygonal domains. -- Problèmes de transmission non coercifs dans des polygones
Monique Dauge, Benjamin Texier
We show that Kondratev's theory for corner domains can be extended to scalar transmission problems between two polygonal materials if the contrast ratio between the two materials i…