Über die Regularität der schwachen Lösungen von Randwertaufgaben für quasilineare elliptische Differentialgleichungen höherer Ordnung
Über ein nichtlineares Schwingungsproblem mit nichtlinearer Dirichletbedingung.
Über quasilineare elliptische Differentialgleichungen in der Ebene.
Un résultat de non-existence de solution positive pour une équation elliptique
Un risultato di perturbazione per una classe di problemi ellittici variazionali di tipo superlineare
Si considera il problema al contorno in , , dove è un aperto limitato e connesso ed è un parametro reale. Si prova che, se è «superlineare» ed è abbastanza piccolo, il problema precedente ha almeno tre soluzioni distinte.
Un théorème de valeurs intermédiaires dans les espaces de Sobolev et applications
Une méthode numérique pour le calcul des points de retournement. Application à un problème aux limites non-linéaire. I. Etude théorique et expérimentation de la méthode.
Unfolding Bifucations of an Elliptic Boundary Value Problem.
Uniform convergence of monotone iterative methods for semilinear singularly perturbed problems of elliptic and parabolic types.
Uniqueness and regularity properties of linear operators and their applications
Uniqueness for a semilinear elliptic equation in non-contractible domains under supercritical growth conditions.
Uniqueness for positive solutions of -Laplacian problem in an annulus
Uniqueness of global positive solution branches of nonlinear elliptic problems.
Uniqueness of least energy solutions to a semilinear elliptic equation in R2.
Uniqueness of solutions for some elliptic equations with a quadratic gradient term
We study a comparison principle and uniqueness of positive solutions for the homogeneous Dirichlet boundary value problem associated to quasi-linear elliptic equations with lower order terms. A model example is given by The main feature of these equations consists in having a quadratic gradient term in which singularities are allowed. The arguments employed here also work to deal with equations having lack of ellipticity or some dependence on u in the right hand side. Furthermore, they...
Uniqueness of the Solution of a Semilinear Boundary Value Problem.
Uniqueness of weak solution for nonlinear elliptic equations in divergence form.