Singular Solutions of the p-Laplace Equation.
Singular Solutions of the p-Laplace Equation (Erratum).
Singular solutions to linear elliptic systems
Singular solutions to Protter's problem for the 3-D wave equation involving lower order terms.
Singular solutions to systems of conservation laws and their algebraic aspects
We discuss the definitions of singular solutions (in the form of integral identities) to systems of conservation laws such as shocks, δ-, δ’-, and -shocks (n = 2,3,...). Using these definitions, the Rankine-Hugoniot conditions for δ- and δ’-shocks are derived. The weak asymptotics method for the solution of the Cauchy problems admitting δ- and δ’-shocks is briefly described. The algebraic aspects of such singular solutions are studied. Namely, explicit formulas for flux-functions of singular solutions...
Singularités d'arêtes pour les problèmes aux limites elliptiques
Singularités des problèmes aux limites dans des polyèdres
Singularités des solutions d'équations d'ondes semi-linéaires
Singularités éliminables pour des équations semi-linéaires
Étant donné un opérateur différentiel d’ordre sur un ouvert de , un compact de , et , nous montrons que toute solution de “ sur ” est solution de “ sur ” dès que la -capacité de est nulle. Cette condition s’avère nécessaire quand est un opérateur elliptique d’ordre 2. Dans ce cas, nous montrons aussi que où est une mesure de Radon bornée sur , a une solution si et seulement si ne charge pas les ensembles de -capacité nulle.
Singularités isotropes des solutions d'équations elliptiques non linéaires
Singularities in elliptic systems with absorption terms
Singularities in two- and three-dimensional elliptic problems and finite element methods for their treatment
Singularities of eddy current problems
We consider the time-harmonic eddy current problem in its electric formulation where the conductor is a polyhedral domain. By proving the convergence in energy, we justify in what sense this problem is the limit of a family of Maxwell transmission problems: Rather than a low frequency limit, this limit has to be understood in the sense of Bossavit [11]. We describe the singularities of the solutions. They are related to edge and corner singularities of certain problems for the scalar Laplace operator,...
Singularities of eddy current problems
We consider the time-harmonic eddy current problem in its electric formulation where the conductor is a polyhedral domain. By proving the convergence in energy, we justify in what sense this problem is the limit of a family of Maxwell transmission problems: Rather than a low frequency limit, this limit has to be understood in the sense of Bossavit [11]. We describe the singularities of the solutions. They are related to edge and corner singularities of certain problems for the scalar Laplace...
Singularities of Elliptic Equations with an Exponential Nonlinearity.
Singularities of Maxwell interface problems
Singularities of Maxwell interface problems
We investigate time harmonic Maxwell equations in heterogeneous media, where the permeability μ and the permittivity ε are piecewise constant. The associated boundary value problem can be interpreted as a transmission problem. In a very natural way the interfaces can have edges and corners. We give a detailed description of the edge and corner singularities of the electromagnetic fields.
Singularities of Maxwell’s system in non-hilbertian Sobolev spaces
We study the regularity of the solution of the regularized electric Maxwell problem in a polygonal domain with data in . Using a duality method, we prove a decomposition of the solution into a regular part in the non-Hilbertian Sobolev space and an explicit singular one.
Singularities of the scattering kernel for generic obstacles
Singularities of the scattering kernel for non convex obstacles