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- Laboratoire de Mathématiques Nicolas OresmeFR42 papers
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- Centre National de la Recherche ScientifiqueFR26 papers
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- Laboratoire de Mathématiques et ApplicationsFR9 papers
- Institut de recherche mathématique de RennesFR8 papers
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14 papers · 1 filter
Focusing of Spherical Nonlinear Pulses in , III. Sub and Supercritical cases
Remi Carles, Jeffrey Rauch
We study the validity of geometric optics in for nonlinear wave equations in three space dimensions whose solutions, pulse like, focus at a point. If the amplitude of th…
Semiclassical Nonlinear Schrodinger equations with potential and focusing initial data
Remi Carles, Luc Miller
We study the asymptotic behaviour of solutions to semi-classical nonlinear Schrodinger equations with a potential, for concentrating and oscillating initial data, when the nonlinea…
K-duality for pseudomanifolds with isolated singularities
C. Debord, J. M. Lescure
We associate to a pseudomanifold with isolated singularities a differentiable groupoid which plays the role of the tangent space of . We construct a Dirac element an…
Deformation par quantification et rigidite des algebres enveloppantes
M. Bordemann, A. Makhlouf, T. Petit
We call a finite-dimensional complex Lie algebra strongly rigid if its universal enveloping algebra $\Ug$ is rigid as an associative algebra, i.e. every formal assoc…
Degeneration, rigidity and irreducible components of Hopf algebras
Abdenacer Makhlouf
The aim of this work is to discuss the concepts of degeneration, deformation and rigidity, and to apply them to the geometric study of the varieties of Hopf algebras. The main resu…
Double crossed products of locally compact quantum groups
Saad Baaj, Stefaan Vaes
For a matched pair of locally compact quantum groups, we construct the double crossed product as a locally compact quantum group. This construction generalizes Drinfeld's quantum d…