Topological degree and application to a parabolic variational inequality problem.
Topological degree for ultimately compact multivalued vector fields in topological vector spaces
Towards viscosity approximations of hierarchical fixed-point problems.
Transformationseigenschaften endlicher Ketten und allgemeine Verzweigungsaussagen.
Transizioni di fase ed isteresi
L'attività di ricerca di chi scrive si è finora indirizzata principalmente verso l'esame dei modelli di transizione di fase, dei modelli di isteresi, e delle relative equazioni non lineari alle derivate parziali. Qui si illustrano brevemente tali problematiche, indicando alcuni degli elementi che le collegano tra di loro. Il lavoro è organizzato come segue. I paragrafi 1, 2, 3 vertono sulle transizioni di fase: si introducono le formulazioni forte e debole del classico modello di Stefan, e si illustrano...
Two convergence results for continuous descent methods.
Two examples of the operators with jumping nonlinearities
Two new iterative methods for a countable family of nonexpansive mappings in Hilbert spaces.
Two Results on Jachymski-Schröder-Stein Contractions
We establish two fixed point theorems for certain mappings of contractive type.
Two-mode bifurcation in solution of a perturbed nonlinear fourth order differential equation
In this paper, we are interested in the study of bifurcation solutions of nonlinear wave equation of elastic beams located on elastic foundations with small perturbation by using local method of Lyapunov-Schmidt.We showed that the bifurcation equation corresponding to the elastic beams equation is given by the nonlinear system of two equations. Also, we found the parameters equation of the Discriminant set of the specified problem as well as the bifurcation diagram.
Über das Verzweigungsverhalten eines nichtlinearen Eigenwertproblems in der Nähe eines unendlich vielfachen Eigenwertes der Linearisierung.
Über die Stabilität von Lösungen nichtlinearer Operatorengleichungen in nicht notwendig lokalkonvexen topologischen Vektorräumen
Über einige Klassen von Iterationsverfahren in Banach-Räumen.
Un critère de convergence pour des méthodes générales de point fixe
Un résultat générique d’unicité pour les équations d’évolution
Soit un espace topologique, un espace métrique et un système d’équations d’évolution admettant une solution dans pour toute donnée initiale dans et stable vis-à-vis des données initiales sur . On montre que l’ensemble des données initiales pour lesquelles admet une unique solution est un de . En particulier, si l’unicité est vraie sur un sous-ensemble dense de , elle l’est génériquement.
Unbounded components of solutions for equations of Birkhoff-Kellogg type
Une extension d'un théorème de fonctions implicites de Hamilton
Unified Error Analysis for Newton-Type Methods .
Unilateral boundary value problems with jump discontinuities.
Upper bound for the number of eigenvalues for nonlinear operators