On fixed points of set-valued directional contractions.
On fourth-order boundary-value problems
We show the existence of solutions to a boundary-value problem for fourth-order differential inclusions in a Banach space, under Lipschitz’s contractive conditions, Carathéodory conditions and lower semicontinuity conditions.
On fuzzy Volterra integral equations with deviating arguments.
On generalized monotone multifunctions with applications to optimality conditions in generalized convex programming.
On generalized strong vector variational-like inequalities in Banach spaces.
On generalized vector quasivariational-like inequality problems.
On generic chaos of shifts in function spaces
On global attractivity of solutions of a functional-integral equation.
On Hadamard differentiability
On Hammerstein equations with natural growth conditions.
On higher eigenvalues of variational inequalities
On hyperbolic partial differential equations in Banach spaces
Viene dimostrata l'esistenza di soluzioni del problema di Darboux per l'equazione iperbolica sul planiquarto , . Qui, è una funzione continua, con valori in uno spazio Banach che soddisfano alcune condizioni di regolarità espresse in termini della misura di non-compattezza .
On infinite dimensional uniform smoothness of Banach spaces
An infinite dimensional counterpart of uniform smoothness is studied. It does not imply reflexivity, but we prove that it gives some -type estimates for finite dimensional decompositions, weak Banach-Saks property and the weak fixed point property.
On infinite systems of Volterra integral equations in Banach spaces
On injective holomorphic Fredholm mappings of index 0 in complex Banach spaces
On inverses of -convex mappings
In the first part of this paper, we prove that in a sense the class of bi-Lipschitz -convex mappings, whose inverses are locally -convex, is stable under finite-dimensional -convex perturbations. In the second part, we construct two -convex mappings from onto , which are both bi-Lipschitz and their inverses are nowhere locally -convex. The second mapping, whose construction is more complicated, has an invertible strict derivative at . These mappings show that for (locally) -convex mappings...
On Ishlinskij's model for non-perfectly elastic bodies
The main goal of the paper is to formulate some new properties of the Ishlinskii hysteresis operator , which characterizes e.g. the relation between the deformation and the stress in a non-perfectly elastic (elastico-plastic) material. We introduce two energy functionals and derive the energy inequalities. As an example we investigate the equation describing the motion of a mass point at the extremity of an elastico-plastic spring.
On iterative solution of nonlinear functional equations in a metric space.
On Kannan fixed point principle in generalized metric spaces.
On Krasnoselskii's cone fixed point theorem.