Einige Existenz- und Einschließungssätze für Fixpunkte expandierender Integraloperatoren. (Short Communication).
Einige Existenz- und Einschließungssätze für Fixpunkte expandierender Integraloperatoren.
Ekeland's variational principle in locally p-convex spaces and related results
In the framework of locally p-convex spaces, two versions of Ekeland's variational principle and two versions of Caristi's fixed point theorem are given. It is shown that the four results are mutually equivalent. Moreover, by using the local completeness theory, a p-drop theorem in locally p-convex spaces is proven.
Equations containing locally Henstock-Kurzweil integrable functions
A fixed point theorem in ordered spaces and a recently proved monotone convergence theorem are applied to derive existence and comparison results for solutions of a functional integral equation of Volterra type and a functional impulsive Cauchy problem in an ordered Banach space. A novel feature is that equations contain locally Henstock-Kurzweil integrable functions.
Equilibrium points of random generalized games.
Equivalence and stability of random fixed point iterative procedures.
Equivalence of some geometric and related results of nonlinear functional analysis
Equivalent contractive conditions in metric spaces.
Equivariant degree of convex-valued maps applied to set-valued BVP
An equivariant degree is defined for equivariant completely continuous multivalued vector fields with compact convex values. Then it is applied to obtain a result on existence of solutions to a second order BVP for differential inclusions carrying some symmetries.
Ergodic retractions for families of asymptotically nonexpansive mappings.
Errata to: “Some fixed point theorems for mappings satisfying Frum-Ketkov conditions” [Comment. Math. Univ. Carolinae 17 (1976), no. 2, 399-411]
Erratum: Common fixed point theorems for hybrid pairs of occasionally weakly compatible mappings satisfying generalized contractive condition of integral type revisited.
Erratum to “Iterative methods for variational inequalities over the intersection of the fixed points set of a nonexpansive semigroup in Banach spaces”.
Error bounds for general mixed quasivariational inequalities.
Essential -type maps and Birkhoff–Kellogg theorems.
Existence and data dependence for multivalued weakly Ćirić-contractive operators.
Existence and data dependence of fixed points and strict fixed points for contractive-type multivalued operators.
Existence and regularity of the solution of a time dependent Hartree-Fock equation coupled with a classical nuclear dynamics.
We study an Helium atom (composed of one nucleus and two electrons) submitted to a general time dependent electric field, modeled by the Hartree-Fock equation, whose solution is the wave function of the electrons, coupled with the classical Newtonian dynamics, for the position of the nucleus. We prove a result of existence and regularity for the Cauchy problem, where the main ingredients are a preliminary study of the regularity in a nonlinear Schrödinger equation with semi-group techniques and...
Existence and Stability of Periodic Solutions for Nonlinear Neutral Differential Equations with Variable Delay Using Fixed Point Technique
Our paper deals with the following nonlinear neutral differential equation with variable delay By using Krasnoselskii’s fixed point theorem we obtain the existence of periodic solution and by contraction mapping principle we obtain the uniqueness. A sufficient condition is established for the positivity of the above equation. Stability results of this equation are analyzed. Our results extend and complement some results obtained in the work [Yuan, Y., Guo, Z.: On the existence and stability of...
Existence and stability of solutions for implicit multivalued vector equilibrium problems.