Multidimensional two-particles problem with non-central potential
Multiplicity results for positive solutions to non-autonomous elliptic problems.
Neue Kriterien für das Fehlen von L2-Lösungen für -...v = f(x, v) im Rn unter besonderer Berücksichtigung des linearen Falles.
New estimates for div-curl products and very weak solutions of PDEs
Non holonomie dans un problème de diffraction
On a holomorphic solution of a singular partial differential equation with many simple poles
On entire solutions of elliptic equations with a singular nonlinearity
On nonlinear superposition, III.
On the existence of global holomorphic solutions of differential equations with complex parameters
On the radial solutions of a degenerate quasilinear elliptic equation in
On the validity of Huygens' principle for second order partial differential equations with four independent variables. Part I : derivation of necessary conditions
On the Weak Solutions of the McKendrick Equation: Existence of Demography Cycles
We develop the qualitative theory of the solutions of the McKendrick partial differential equation of population dynamics. We calculate explicitly the weak solutions of the McKendrick equation and of the Lotka renewal integral equation with time and age dependent birth rate. Mortality modulus is considered age dependent. We show the existence of demography cycles. For a population with only one reproductive age class, independently of the stability of the weak solutions and after a transient time,...
Paramétrix et propagation des singularités pour un problème de Cauchy à multiplicité variable
Periodic-Neumann boundary value problem for nonlinear parabolic equations and application to an elliptic equation
In this paper we study the periodic-Neumann boundary value problem for a class of nonlinear parabolic equations. We prove a new uniqueness result and study the structure of the set of solutions when there exist more than one solution. The ideas are applied to a Neumann problem for an elliptic equation.
Positive global solutions for a general model of size-dependent population dynamics.
Prolongements d'équations différentielles linéaires. III. La suite exacte de cohomologie de Spencer
Propagation des singularités différentiables pour une classe d'opérateurs différentiels à coefficients analytiques
Propagation et réflexion de la propriété de transmission des distributions de Fourier
Propagation of singularities for interior mixed hyperbolic problem
Propagation of weak singularities on characteristic surfaces of non-constant multiplicity