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- Château GombertFR10 papers
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9 papers · 1 filter
On the relaxation of unbounded multiple integrals
Omar Anza Hafsa, Jean Philippe Mandallena
We study the relaxation of multiple integrals of the calculus of variations, where the integrands are nonconvex with convex effective domain and can take the value \infty. We use l…
Relaxation and 3d-2d passage theorems in hyperelasticity
Omar Anza Hafsa, Jean-Philippe Mandallena
We give an overview of relaxation and 3d-2d passage theorems in hyperelasticity in the framework of the multidimensional calculus of variations. Some open questions are addressed.…
Relaxation and 3d-2d passage with determinant type constraints: an outline
Omar Anza Hafsa, Jean-Philippe Mandallena
We outline our work (see [1,2,3,4]) on relaxation and 3d-2d passage with determinant type constraints. Some open questions are addressed. This outline-paper comes as a companion to…
Relaxation et passage 3D-2D avec contraintes de type déterminant
Omar Anza Hafsa, Jean-Philippe Mandallena
The goal of this paper is, on the one hand, to make available a set of tools and methods to deal with relaxation and 3D-2D passage with determinant type constraints, and, on the ot…
Spurious caustics of Dispersion Relation Preserving schemes
Claire David, Pierre Sagaut
A linear dispersive mechanism leading to a burst in the norm of the error in numerical simulation of polychromatic solutions is identified. This local error pile-up corr…
Towards new schemes: A Lie-group approach of the CBKDV and its derived equations
Emma Hoarau, Claire David
The aim of this paper is to propose methods that enable us to build new numerical schemes, which preserve the Lie symmetries of the original differential equations. To this purpose…