Eigenvalues and ranges for perturbations of nonlinear accretive and monotone operators in Banach spaces.
Eigenwertaussagen für kompakte und kondensierende mengenwertige Abbildungen in topologischen Vektorräumen
Ein elementarer Zugang zur Leray-Schauder-Theorie
Ein Funktionalanalytischer Beweis des Satzes von Cauchy-Kowalewsky.
Ein Homotopieerweiterungssatz für kompakte Vektorfelder in topologischen Vektorräumen (Vorläufige Mitteilung)
Ein Satz über den Leray-Schauderschen Abbildungsgrad.
Ein Störungssatz für positive Eigenwerte kondensierender mengenwertiger Abbildungen in lokalkonvexen topologischen Vektorräumen
Eine Bemerkung über a-priori-Fixpunkte nicht-expansiver Abbildungen.
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.